5u4gb tube equivalent. 6N1P (original box) ORZEP.

5u4gb tube equivalent The finest newer production rectifier tube anywhere. Made in Russia. The ST-70 works that rectifier tube pretty hard on start up. DC current of the GZ34 is 250mA, so a single tube won't suffice. 9 Products . $33 Compare 10. 2,9mA betragen, eine Messung der Durable 5U4GB built for the military (JAN = Joint Army Navy). Original Genalex Gold Lion ECC81/B739 tubes are considered the best I have an ATM300, I really like the 5U4GB Tung-Sol and the 5U4GB Sylvania, Takatsuki 274B is my preferred rectifier tube (but decreases the maximum amplifier volume) since the Shuguang WE274B is also very good and has the same efficiency as the 5U4GB! If you want a 5U4GB that will take a beating and likely outlive you, then this your tube. The GB version is not the same tube as 5U4G and 5U4GB tube types are spec-ed a little differently, with GB having slightly less voltage drop, yet I've noted much more compressed murkiness from stronger Sylvania 5U4GB. " Tube tests as new with balanced sections and low noise. Gold Grid. 5U4-G Ratings Kenotron 5C3S (BLACK PLATE) High-Quality Russian audiophile tube, direct-filament two-anode. . Russian and Chinese ST bottle 5U4 "equivalents" are garbage. If your amp has a larger first cap then replacing it with a high quality 47uf is a good idea. V – tube with increased reliability and mechanical strength; I – tube designed to operate in a pulsed mode. I can only find old rusted metal 5Z4's at my local tube shop. These are used. In my opinion, this is one of the better Post subject: is 5U4Gb equivalent to 274b/n? Posted: Tue May 14, 2013 6:12 pm . Made in the USA in the 1960's. The 5U4GB rectifiers draw more current and has more low wattage breakup than the GZ34/5AR4 in lower wattage amplifiers so maybe try that rectifier tube. TGI1-700/ Right. 5Ц3С (5C3S) 5AS4A, 5U4G, GZ31: 5Ц4С (5C4S) 5Z4, 5Z4G, GZ30: 6Ц5С (6C5S) 6X5GT, EZ35: Triodes. Tested on the Go and see the doctor: Find all of our products here: our newest product line of high-end Redbase tubes, our famous premium selected tubes, and the equipment we manufacture like our Class A Converters, the Bias Master or the Silencer. end quote! Reactions: If you have a circuit that is designed for e. :: 5U4GA, 5U4GB, 5V3 • So many inexpensive 5U4GB tubes exists for sale that new manufacture is not a consideration for myself. 3A One of the scrimpiest power transformers ever, on the Dyna ST-70 was made for a 5AR4, and I got one 34 yrs. Because it has considerable thermal inertia, the 5U4GB takes a while to come into operation, Tube gear is fun because you can do some tube rolling. Equivalent to most 5 volt rectifiers and can also substitute for 5Z4G, and 5AW4. Equivalent to tubes: EL84, 6BQ5. Genalex Gold Lion ECC81/B739 (12AT7) dual triode preamp tube with gold pins. 95 . Warranty Information and Return Policy Warranty Period: 3 months. In many users opinion the Jan The EH 5U4GB is a Russian Military tube, re-branded, and it is beefier in construction than the JJ and some of the other GBs. TGI1-700/25 (original box) POLARON. Technical specifications: Filament voltage nominal: 6. Tubes for the Fender Super Reverb 5U4GB • Factory selected for closest tolerances and most consistent performance • ECC81 equivalent. These tubes are lightly used. Getting harder to find – Stock up now before they are HISTORY. Increasing the cathode bias resistor is often necessary. Maybe I've got great hearing (it tests very well). i don't have another 5z4p. May have other brand labeling but are 100% RCA. Those particular 5U4G's added weight, grip as well as added Tube 5U4G or Röhre 5U4G ID3352, Full-Wave Vacuum Rectifier, Octal (Int. Would the solid state plugin cause any problems ?,I know the output voltage would be higher possibly affecting other tubes this would be a short term fix till I can get I would like to replace the stock 5U4GB rectifier with a Weber WS1 solid state rectifier (only-diode, no-sag "copper cap" direct replacement) in my '77 Fender Deluxe Reverb amp. It is also similar to the RK60/1641 tube which is also a 5U4G. Winged C 5U3C. New Tested Electro-Harmonix 5U4GB Vacuum Tube Modeled after the famous McIntosh didn't use these particular tubes for economic reasons. I'm new to tubes so I'm asking for your Tube Interchangability Reference. 75 ea. These sounds good to me - but can we do better? I value soundstage depth the most - want that 3D layering of instruments 5U4GB SYLVANIA NOS-NIB, rectifier tube. $45. Posted on August 26, 2020 by tubemaze. Getting harder to find so stock up now before they are HISTORY. s. Neither are the output tubes or Mullard 5AR4 tubes. Headphone Amps (full-size) So I suspect they will sound substantially like an RCA or Sylvania 5U4GB, depending on which 5931 you buy. TC Tubes and Audio Repair Repair services include tube gear, turn table set-up, and tube-testing in Twin Cities Metro Area. Home; Catalog; Repairs & Mods; Resources; Links; Policies; Contact; My Account; NOS JAN Philips/Sylvania 5U4GB *** SALE PRICE $35 *** Tube Testing & I recently placed a deposit for a Torii Jr and am interested in starting to compile some back up tubes to have in anticipation. 6E5P. g. The 6L6G may be replaced by 6L6GCs, 5881, or KT66s, all of which are drop-in compatible, and also have significantly higher power ratings. The Sylvania ANOS JAN-5931 5U4GB is a super ruggedized ultimate quality rectifier. net Or call us at 253-756-6489 Original JAN specification 5U4GB made in the USA by Philips to the highest military specification. The GB version is not the same tube as the G Version. IO: 2: 4: 6: 8: f: a(2) a(1) f . Top . Replacing 5U4GB with 5U4G may result in lower PREFACE TUBE CADDY - TUBE SUBSTITUTION GUIDEBOOK has been published in answer to the requests of many technicians for an efficient guide which can be carried in their tube caddies. Dated June and July of 1957. The power supply in this 1939 vacuum tube amplifier is a text book example of a 5U4G rectifier. Electro Harmonix 12BH7EH Tube. 6L6 has a characteristic pop, snap and sizzle sound that makes it an excellent fit int guitar amps, notably Fender Amps. 5A of current. 99 In Stock! NOS Tubes Precision Tested and Ready to Ship! Vacuum Tubes #1 ONLINE Source for all NOS Vacuum Tubes. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain 6L6 tube is used in many mainstream guitar amps today. Buy Electro-Harmonix 5U4GB Vacuum Tube: Tubes - Amazon. Originally the 5U4GB design was called the 5AS4 (ST version) and later the 5AS4A (GT version). This current draw makes it acceptable for many amps originally designed for a 5AR4/GZ34 tube. The following should be direct substitutions. 5, I There are two basic 5U4GT tubes. Shopping Cart 0 items. Tubes: Rectifiers - USAF "Mighty" 596 w/ Woo Audio Adapter | Sophia Princess 274B Mesh | KR Audio 274B-HP | Takatsuki TA-274B | Emission Labs 274B | Emission Labs 5U4G | KR Audio 5U4G "Riccardo Kron Anniversary Edition" | 1957 NOS JAN Sylvania Ruggedized 5931/5U4GB | Tung-Sol 5U4G B TUBE FULL WAVE RECTIFIER DOUBLE MESA® 5U4G RECTIFIER TUBES (Tall "Coke Bottle" Design) The MESA® 5U4G RECTIFIER TUBE is a classic 1930s "Coke Bottle" design. As Gadget says, the 5U4GB will be more reliable with a higher current. Designed for low frequency power amplification. a 5U4GB and you plop in a 5AR4 without making other adjustments, you may in fact think that it "sounds better" (higher plate and screen voltages would be the likely result), but you may also be running your tubes harder (and this might put your over your max dissipation limit on a single-ended amp). Equivalent to tubes EF86, 6CF8, 6267. I purchased two RCA 5U4GB NOS rectifier tubes from vintage 1965 for about $20 a piece on EBay. The input voltage was measured at the 6L6GC control grid (g1) and the output Kenotron 5C3S (BLACK PLATE) High-Quality Russian audiophile tube, direct-filament two-anode. This indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most Soviet tube 6J32P (6Zh32P) low frequency pentode with a short anode-grid characteristic and a low level of noise. The Electro Harmonix takes at least 50 hours to break in, and friends have told me its "at Looking for a Tube not listed? If you can't find it, We'll find it for you! Email us at worldtubecompany @earthlink. 5U4G equivalents jt1stcav; Aug 29, 2004; Tube Audio; Replies 16 Views 17K. Just popped one in my 26 preamp and I have to say, it's the best sounding rectifier I've ever used in there, and I've tried 5AR4, GZ33, 5R4GY, 5R4 potato masher, 5U4G, 5U4GB, 6106, 5Y3GT, 5Y3G, and Valve Art 274B. These are strong. Die Röhren werden aber nur nach Ruhestrom selektiert, der maximale Unterschied darf max. 4,00 $ Russian audiophile electron tube 6E5P. us. All The 5U4GB is rated at 40uf but using a 47uf, which is a common size, is OK since your amp probably uses less current that the 5U4GB can handle. There is common misunderstanding that 5U4G and 5U4GB is the same. The 6N6P Russian double triode tube. 98,00 $ Original price was: 98,00 $. New posts Search forums Subscribe. NOS 5U4GB Rectifier Vacuum Tube (2 Reviews) USD $‎49. In any case, given the low price and wide availability of NOS 5U4 variants, it certainly makes sense for each person to The Valve Art 274B looks just like a 5U4, but the EML 274B mesh plate is another animal altogether. There is clearly an additional part in the 5r4-gy tube though. This is a list of Soviet and Russian tubes and their American/European Equivalents. Start up arcing reports are all too common. USD $‎23. I don't have my Tube manual here; but I think the GB may be rated for a higher voltage also. zidane Post subject: > Note 4) There is common misunderstanding that 5U4G and 5U4GB is electrically the same. 34,90 $ Triode 6S33S-V High-Quality Russian audiophile tube Circuit design may assume slow start of rectifier tube (unless it is directly heated type). com FREE DELIVERY possible on eligible purchases. To fully simulate a tube you need diodes in series with A problem caused by directly heated or filamentary cathode rectifiers is known as cathode stripping. You can substitute lots of tubes, as long as you observe the peak inverse voltage and current limits, and it's good to pay attention to filament current draw too (e. 5U4 Used Rectifier Vacuum Tube No Reviews yet. 47) Looking for a Tube not listed? If you can't find it, We'll find it for you! Email us at worldtubecompany @earthlink. The first thing to know/specify is the required DC current at full power. 9,90 $ Russian 5C4S kenotron tube, direct-filament, two-anode. New Old Stock Philips in stock ready to ship today from Surplus Sales of Nebraska. In that case replacing tube with silicon diodes can cause quick failure. I picked up a couple 5U4GB tubes for dirt cheap, and I'm thinking of trying Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit; Elekit TU-8600S 300B Tube Amplifier Kit - Lundahl Version; Elekit TU-8850SE Stereo Tube Amplifier Kit; Elekit TU-8900 300B/2A3 Tube Amplifier Kit; Elekit TU-H82 Hybrid Tube Amp Kit; Model 16LM Mono Integrated Tube Amplifier; Model 8LM Mono Integrated Tube Drop-in Equivalents & Substitutes: 5U4. I have been told by several people that I can use the 5U4GB as a substitute, I need to know if this is true. $33 Compare 255. Hi, Can anyone tell me what the differences are between the following tubes? Soviet/Russian Tubes Equivalents. 5C4S (figural) NEVZ. John Day. If you blow up the image, you can see a 5U4GB straight bottle tube. As for why 4 pins vs. replacing a 5AR4 with 5R4 or 5U4 adds another amp @ 5v = 5 watts current draw). The current production EH 5U4GB (straight What's the difference between the 5U4, 5U4G, 5U4GA, and 5U4GB tubes? 206. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. If you have an American tube and want to know what Euro­ 5U4GB t-CJ 5AS8 Z 5AT8 5CG8 > 5AU4 5V3 5AV8 5B8§ u 5AW4 5AS4, 5AS4A, 5AU4, 5DB4, 5R4GYB, c. Compare Remember Part Number: S5U4GB-RCA. They are used in many audio and guitar amps and best of all, they are readily available and quite inexpensive. Designed for rectification of alternating voltage. 5u3c I believe. 6N1P (original box) ORZEP. Joined 2004. All substitutions included here will yield excellent or good results, noted by E or G, "5U4GB EH rectifiers, certainly the best of the current crop, a very good solid tube, $12. Tung-Sol NN099-G Tube 12AX7/ECC803S. Octal, IO) K8A, USA 1935 and Power-supply shown. Total power draw is probably somewhere around 142 mA (61 mA per output tube plus 10 mA per side for the 12AT7). We also have other 5U4 tube versions in stock: 5u4G, 5U4GB, 5U4WG Equivalent tube: 5U4G (U52, 5Z3, 5AS4, 5Z10, GZ32, 5AQ4, 5V4G, GZ34, 5AR4) The 5C3S kenotron can be replaced by two 5C4S kenotrons. Each. Equivalent: 5U4G, 5U4GB, GZ31, U52, 5AS4(A), 5Z10, 5931 Cart. Replacing 5U4G with 5U4GB may result in higher rectified voltage, so should never be done. The Chinese tubes have gotten a lot better than they were 10 yrs ago. The 5U4GA and the 5U4GB. Designed for Das TAD Standard Matching beinhaltet ähnliche Qualitätsprüfungen wie beim TAD Premium Matching. The 5U4 rectifier tube is also known by the equivalent part numbers 5U4G, 5U4GA, 5U4GB or 5AS4. The 5C3S and 5U4G are double-anode rectifier tubes. Those are the 6V15P, 6DJ8, 6922, etc. Base -9 pin. $40 Compare 176. Russian audiophile tube, direct-filament two-anode. 6L6 was originally developed in USA in mid 1930s. net Or call us at 253-756-6489 It blows fuse immediately, and seems to spark inside rectifier tube. What can I say, this is definitely one of the more musical and transparent rectifiers. A 100W tube amp draws between 300mA and 400mA. Tested on the RoeTest professional computer testing system. 152. E – characterizes the increased durability of the tube Designed for rectification of alternating voltage. Pin Connections. This is equivalent to the 5U4G. I also have a number of 5U4G tubes that for whatever reason haven't pleased me as much as the GB series. 2016-01-19 3:58 pm #2 2016-01-19 3:58 pm #2 Both Russian and Chinese ST bottle 5U4 "equivalents" SUCK. Notice the difference in the shape of the plates and the two additional wires in the 5r4 Equivalent to the 5Z3PA 5U4GB, 5U4, 5C3S, 5AS4A, 5Ц3C, CV1863, and GZ31. Equivalent tube: 5U4G (U52, 5Z3, 5AS4, 5Z10, GZ32, 5AQ4, 5V4G, GZ34, 5AR4) The 5C3S kenotron can be replaced by two 5C4S kenotrons. Rectifier Tubes; Brands Ei; Electro Harmonix; Genalex - Gold Lion; Jan Military Tubes EL84 tone can be characterized as chiming, treble-heavy, and articulate compared to other Near equivalent: 6DJ8, ECC88, 6922. The valve provides the exact rectification and long life as you would expect from a military grade valve. Share: Found a lower price? Let us know. One tube has some scratching on the base. 5U4G / 5U4GB tubes; 5Y3 tubes; 6080 / 6AS7 / 5998 / 421A; 6085 / E80CC; 6267 / EF86 tubes; This 1960s Raytheon 5755 tube is a military spec equivalent to the Western Electric AB568 circuits tend to like 5U4GB rectifier tubes. Amplifiers that use the 5U4GB tube or another vacuum rectifier tend to have fewer problems due to over-voltage and power spikes. rectification. old with the original tubes all still working, sporting a 5U4GB that the original kit builder had substituted at the outset. Psvane ACME KT88 Pairs + Quartets I recently acquired a 9 watt Class A design 300B tube integrated that came with a 40's NOS Japan 5u4gb rectifier that I wanted to compare to some of the best that's available. Share: Facebook Twitter Reddit Pinterest Would like to change the Chinese tubes because both had been "sparking" occasionally a few seconds after the power is turn on. 89,90 $ Current price is: 89,90 $. 00 to ship or pick up and save yourself $20. jt1stcav. 5U4G or 5U4GB?? ProAc_Fan; Feb 29, 2004; Tube Audio; Replies 16 Views 15K. The code “312” on the base is Sylvania’s manufacture code. Voltage sag under load may be slightly different too. Our PS-274B tube is a beautiful large coke bottle shaped rectifier tube with large black Any benefit of rolling rectifier tube? Mike. Their amps were expensive and their major reason for doing anything was sound quality and not cost cutting. Jump to Latest Jmeade15. My fav is Tung Sol 5U4GB. Output tetrode 200MHz 10W. 5V; Filament current: 3 ± 0. Quick view-8%. One of the finest rectifier tubes anywhere. See also 1956 adverts. They used these tubes because they worked in this unity coupled circuit and were very reliable. Mar 9, 2004. for standard tested tubes; $14. Be careful when going to a higher rated rectifier in 6V6 amps. The NOS American 5U4GBs are all very stout tubes so any brand should do fine. These are usedSee the pictures for condition and ask questions. ab0ez AB0EZ. The tube will burn out prematurely if the amp demands more than 125mA on a regular basis. and others may not be replaced by the 6L6G, due to the lower ratings on this tube. J. These are unlabeled but came directly from the Mesa factory. 5U4 Tube Types. Delivering to Lebanon 66952 Electro-Harmonix 5U4GB Vacuum Tube. RCA ANOS 5U4GB | 5U3C | 5U4G | 5C3S | 5AS4A | CV1863 Rectifier. I attach the SFDR schematic for reference (my amp fits the 5U4GB; 5Y3; 6X4; 6CA4 / EZ81; Misc. Quickest shipping from NessTone Tube Sales Sylvania 5u4 rectifier tube c 1960 5u4gb recto 5U4GB Is a Dual Diode Rectifier with a higher current rating than the 5U4G. Known now as the "Mighty" 596, this tube is similar to a 5U4G or 5U4GB and should work in most amps made for them. Be aware that these tubes are not cheap. In this case, you need to add one lamp socket and connect all its outputs in parallel with the 5C3S tube socket. The top: The base, unused pins are left out to reduce creepage paths Pair of Tung-Sol 5U4GB tubes that test 59-61/40 & 58-58/40 on my TV-7D tester (calibrated 1/27/24). sleddogman Super Member. Add $20. Joined 2011. Any 5u4gb equivalent at Sophia Electric? 274b's?? Many Thanks! Hi Guys, I'm looking to replace the two rectifier tubes in an Audio Note Kit Mentor L5 preamplifier. A EZ-81/6CA4 takes about ten. This video is part 1 of working our way through the schemati Russian 6P15P-EV tube broadband power amplification output pentode. Reactions: THD+N. The GB is a GA with an improved design (slightly more power output). Our stock contains various (Rectifer Tube Rolling thread) Home. The 5U4 is famous and one of the most used rectifier tubes. I would guess I also have three 1960s Transitron SE5U4GB solid state rectifiers in my tube stash. per plate". 5U4GA, 5U4GB, 5AS4, CV1575, 5U4G (large ST tube - electrically equivalent but won't fit in some circuits) 5R4. Just be aware that the tubes you change out which make the most difference in the sound of the amp with his amp will be the driver tubes. So you can safely use a 5U4GB if you wish. Member. Anyway these tubes are replaceable, and there are analogues available in the market. The tubes have some scratching on the base. Due to lack of sales and multiple inventory issues ALWAYs check the bias and idle power of the tube with the new rectifier to be certain that it is running within spec. Forums. JJ Electronics T-5U4GB-JJ Amplifier Tube is robust and economically priced, and it’s our first choice as the best 5U4G Home Search Indexes Equivalents Articles Adverts & Boxes Timeline Collections Donate Contact. Need This GE 5U4GB NOS rectifier tube replaces 5U4GA, 5U4GB, 5U4G, 5U4, 5AS4, 5AS4A and GZ37 vacuum tube types. The 5U4G is an American tube commonly used in audio equipment. Works in any position. 5U4G: 450V @ 225mA. Great sounding, high quality! Full analog EL84, near equivalent tubes: E84L, 7320, 7189, 7189A, 6P15, 6L40 Tesla, N709, 6BQ5 NOS RCA 5U4GB rectifier tube, original boxed NOS-NIB picture may differ in colour and print style €89. Sort & Filter . 194. Try different brands of tubes, but not different types in these amps. This affordable rectifier tube is for use in any 5U4 socket. Do the rectifier tubes must be matched? Q3. The GA is simply the old 5U4G crammed into a smaller GT bulb. The Chinese 274B is a 5U4G with "274B" stamped on it for marketing reasons. My 1965 Super Reverb has a 5U4GB and that sounds much better than a GZ34 in that particular amp. Cathode oxide, indirect heating. 5U4GB 5V3 5V3A 5AXR4 5AS4 5AS4A 5R4G 5T4 5U4GA 5U4GB 5V4 4BC8 4BQ7A 4BS8 4BX8 4BZ7 4BZ8 5BS8 5BZ7 5FV8 5BQ7A 5BZ7 5BQ7A A 5U4GB would be the the next best after the 5AR4 , 5AS4 then the 5R4 . Can be used in impulse circuits. Several rectifier tubes are equivalent to 5U4G tubes. 94) That (IMO) makes it a poor substitute for a 5U4. My BF'd 1969 Bandmaster Reverb sounds better I need a 5U4GB tube for my Fender Princeton but I can't find one, only a SST 100 Solid State equivalent (oh My God) Ideas, please My favorite 5U4GB tubes are GE, JAN Phillips, Raytheon, RCA and Sylvania, pretty much in that order from top to bottom. This tube may not fit in all amplifiers. 50 for premium tested tubes, tested under load to deliver 120 ma. Quick view Tubes for the Fender Super Reverb 5U4GB. PREFACE TUBE CADDY - TUBE SUBSTITUTION GUIDEBOOK has been published in answer to the requests of many technicians for an efficient guide which can be carried in their tube caddies. After almost Russian electron tube 6P14P-ER - low-frequency output pentode. Would not think the Chinese valve would last long under those conditions. All substitutions included here will yield excellent or good results, noted by E or G, Mesa 5U4G | 5U3C | 5U4GB | 5C3S | 5AS4A. Equivalent: 5U4G, 5U4GB, GZ31, U52, 5AS4(A), 5Z10, 5931 It’s a direct replacement for 5U4G tubes an as such could be used in quite a few of my tube amplifiers. A frequency generator was used to measure voltage gain and plot the frequency response from 10Hz to 20kHz. 2012-02-12 5:11 pm #1 2012-02-12 5:11 pm #1 Hello, I am new to discussion forum - building my first amp. As rectifier tube or The 5U4 has got to be the most popular rectifier tube out there. 2С4С (2S4S) 2A3: 6С1П (6S1P) 9002: 6С2П (6S2P) 6J4, EC98: 6С2С (6S2S) TAD RT504 5U4GB Rectifier Tube. With Brown bases, triple Sections 3 and 4 list American and European equivalents. Equivalent: 5U4G, 5U4GB, GZ31, U52, 5AS4(A), 5Z10, 5931 Description. $29 Compare 160. Near equivalent: SV83, EL803S, EL83, 6P1T. 3A 5Y3 Tube Types in Stock. 5as4, 5as4a, 5u4ga, 5u4gb Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Aug 7, 2007 #3 5881s have a bit . The Vdrop is the voltage drop across the rectifier, those numbers (-17, -25, -60, -67) are over-simplified, the actual Vdrop will depend on the actual incoming AC voltage becing rectified. 5u4's aren't equivalent, right? (a 5u4 can be replaced by 5u4gb, but not a 5u4gb by 5u4?) Q5. I highly recommend an old Russian svetlana 5u4g equivalent. REFLECTOR. The 5Z4 is a Chinese tube and I would like to replace it with an old US tube. 5U4G / 5U4GB tubes; 5Y3 tubes; 6080 / 6AS7 / 5998 / 421A; 6085 / E80CC; 6267 / EF86 tubes; This 1960s military spec Mullard CV2748 / GZ30 rectifier is a 5Z4 equivalent. Electro Harmonix 12AY7 Tube. A GB can be subbed for a G, but you need to check circuit demands before subbing a G for a GB. SYLVANIA / PHILIPS made 5U4GB all pieces we've ever seen made by Sylvania are beautiful blackplate constructions. Airtight ATM300 and 274B-5U4G-5U4GB Have: Takatsuki 274B, it seems a little weak, limiting the volume, is also very sweet! (6L6GC equivalent) output tubes. . tube vs The $20. This manual contains only direct substitutions which can be made without modification of the wiring. Title: 5X4G 5U4G 5Z3 Author: Tung-Sol Subject: JA-FP-2005-10-29 Created Date: 10/29/2005 12:19:51 PM 5U4GB full – wave vacuum rectifier Base: OCTAL uf = 5 v if = 3 a Typical Characteristics: capacitor input: see graph # 1 choke input: see graph # 2 Limiting Values:max 38,0 Capacitor Input f = 50 Hz ua invp = 1550 v ip =max 120,0 1 a c = 40 µf Choke Input f = 50 Hz ua invp = 1550 v ip = 1 a l = 10 H This 274B vacuum tube's filament draws 2. Our stock contains various The 5U4G rectifier delivers 100 Watts of DC power. You can watch the difference, 5U4 filaments come up within a few seconds. PLEASE NOTE: The 5U4G is a tall "Coke Bottle" design. ferninando. According to this page, the 5Z3P, with the 5Z3PA being listed as "sensibly equivalent", is listed as a "modern version" of the 5Z3, and has an octal base with the same pin out as the 5U4G and its ilk. The same xformer was used in the AB568 and later revisions of the Super Reverb with a 5U4GB. Equipment Forums. Jun 22, 2015. R. Skip to main content. 6S33S-V. 5U4GB is a version, with lower internal resistance and higher peak current is allowed. Here we have a 5U4G made by RCA. 32. replace Chinese 6Z4 rectifier tube with solid state equivalent? daica; Jun 21, 2015; Tube Audio; Replies 4 Views 6K. Fender briefly used GZ34s in various amps, then switched to 5U4GBs. Great sound! Designed for rectification of alternating voltage. i have other tubes around (5u4GB, 5AR4, etc) is it ok to put the 5AR4 and a new fuse in and try? I don't know if it's simply a. Absolute Maximum I'll assume it's Chinese in origin, but it seems to work fine. Cart. Your amps is probably an AB763, fitted with a 125PSD power transformer, which is designed for up to 3 A for the recto. 10 yrs ago, you had to say a little prayer each time before power up to help make sure the darn things would not short out and display fireworks, especially on their 9 receiving tubes 00a-1c7g tube type basing replacement tube type basing ooa 4d 1am4 6ar 01a 4d 12a, 112a 0a2 5bo 1an5 7es 0a3 4aj 0a3a, vr75 1aq5 7at 0a3a 4aj 0a3, vr75 1ar5 6au 0a4g 4v 1as5 6bw 045 6cb 1au2 9u 0b2 5bo 1au3 3c 0b3 4aj 0b3a, vr90 1b3gt 3c 0b3a 4aj 0b3, vr90 0c2 5bo 0c3 4aj 0c3a, vr105 0c3a 4aj 0c3, vr105 1b4 4m 0d3 4aj 0d3a, vr150 0d3a 4aj 0d3, vr150 This 1960 military spec Tung-Sol 5687 tube has a halo getter and black plates with the bronzing characteristic of tubes of this type. The 5c3s is a reliable Russian tube with a unique black anode. I have no complaints about it. 141: Re: 5u4gb in Dyna ST70 (5. Both are made by Sylvania but one is labeled Magnavox. 5U4GB Type 5U4GB was first introduced in 1956. Each tube sample was installed in the same custom built, fixed bias single-ended guitar amplifier (see schematic) with a Fender black face style preamp circuit. Email Password Confirm Password Kenotron 5C3S (BLACK PLATE) High-Quality Russian audiophile tube, direct-filament two-anode. BTW, in the 2nd paragraph of his response, I think he is referring to the picture of the SE34I. For sure, the price is right. Look for shiny black plates and a The rectifier tube consists of a sealed glass bulb with a filament heated by a separate current and a metal plate anode. It takes more time for the filaments to heat up the actual cathode tube, sumthin' like that. 4,50 Equivalent: 5U4G, The JJ 5U4GB vacuum tube is an excellent choice for both Hi-Fi audio & instrument amps. Using 2xGZ34 will require the PT to provide a minimum DCR of 75 Ohm per side. However I read that 5U4's and 5R4's are very similiar to the 5Z4. Home. High reliability, life non less 5000h. My M102 5U4GB has failed due to a shorted filter capacitor. I was a little surprised by this, but I don't think its an EML tube because EML doesn't make 5U4GB tubes. See the pics the 5r4 is on the left. The silver print has the Tung-Sol logo and reads "JTL-5687WA. 4: Chalky black plate Tungsol 5U4GB (9. Quick view. Designing power supplies with rectifier tubes is a rather demanding task. This indirectly Description. The 5AR4/GZ34 has the least Vdrop, then the 5V4, then the 5R4 and What's your favorite 5u4gb (brand and/or tube equivalent)? Q2. I do not accept returns unless the items are not as described. See the pictures for condition and ask questions. A 5T4 metal tube will get very very hot if it NOS , will stink as the paint burns off . Equivalent to tubes: ECC99, E182CC. Title: 5U4GB Author: RCA Subject: FP-2011-12-10 Created Date: 12/10/2011 9:04:11 PM The GEC U52 is arguably the best sounding 5U4G Full-Wave rectifier ever made, other than the Western Electric 274A and 274B. (5U4G-ST equivalent), the Russian tube is similarly warm as some of the nicer 5U4GBs, but in comparison, has less speed The 5U4 was made by all the major tube manufacturers and is still being made today among others by ELROG. ULYANOVSK. 3 ± 0. Radio tubes are valves. 6V; Filament current: 600 ± 60mA Great sound! Designed for rectification of alternating voltage. 5U4GB Tube Power Supply Schematic. Thread starter Jmeade15; Start date 2012-02-12 5:11 pm; Status Not open for further replies. They are meant to replace 5U4GB tubes but are sized and built like a metal envelope tube (like a 12SQ7). Joined: Sat Apr 14, 2012 9:07 pm it says on the amp 5z3p, 5u4gb 274b. RCA, Sylvania, National Union, Raytheon, GE, KenRad - everybody made them by the boatload and to me, there's little discernible difference sound-wise between them Pair of 5U4GB tubes that test 64-64/40 & 64-60/40 on my TV-7D tester (calibrated 1/27/24). Login / Register. Equivalent: 5U4G, 5U4GB, GZ31, U52, 5AS4(A), 5Z10, 5931 Western Electric Tube Types in Stock. Feb 17, 2012 #5 As a plus, the 5R4 only pulls 2 amps of filament current, which will be good for your power transformer vs the 5U4. The original 274A or 274B were a special 5V/2A rectifier tube design by WE, between the specs of a 280/80/5Y3G and a 5R4G. 00For sale a pair of Russian 6n3c power tubes which are the equivalent to our 6L6I am throwing in a pair of unused EH 5u4gb rectifiers purchased from Parts ConnectionTubes were tested on my Stark 9 Well either way, you can't just go using tubes that don't even have the same kind of pinout/pin arrangement as the original tube (1641 and 5U4GB) in a tube amp circuit that calls for a 5U4GB or equivalent tube. You should always avoid having more than 430 volts across a 6V6 (plate voltage minus cathode voltage). Sep 2, 2004. Cathode stripping is a highly technical issue, but the basics of it are this: Filamentary Cathode rectifier tubes like What are the thoughts of forum members regarding replacing rectifier tubes with solid state plug in equivalents. With a Hammond 374BX power transformer, I get about 450V B+. Brand new tubes should test 62-62/40 or higher. It would be used for all types of medium power equipment and was used extensively in 1940's equipment. No longer made and soon will be gone forever. 00 price is for all 4 tubes. 5U4GB SYLVANIA NOS-NIB, rectifier tube SYLVANIA / PHILIPS made 5U4GB all pieces we've ever seen made by Sylvania are beautiful blackplate constructions. Posted by PeterCapo on January 10, 2001 at 14:18:28 . Technical specifications: Filament voltage: 5 ± 0. This is the earlier Mesa version ST shaped tube used in older Mesa Rectifier amplifiers. Excellent driver for 6S33S Description. Tested for shorts, emission and noise. Thanks for your advice. </p><br /><p>The Magnavox labeled The 5881 is a military spec approximate equivalent to a 6L6GC. These british made U52 tubes are brand new NOS in original boxes (branding on tube varies but all are original GEC made U52), and were made in the 1950's at the Hammersmith factory by Genalex (Marconi Osram - M-O Valve). Pair of Tung-Sol 5U4GB tubes that test 60-61/40 & 61-60/40 on my TV-7D tester (calibrated 1/27/24). NessTone 5U4G | 5U3C | 5Z3PA | 5C3S | 5AS4A | CV1863 Rectifier. It’s not as delicate as 80 globe and Sylvania 5u4gb Vacuum Tubes $39. Right now I'm running 5U4GB's by Electro-Harmonix. No products in the cart. Users have different preferences based on circuit and personal taste. do i stick to 5u4gb or can I change the rectifier tube? I don't think their is a change in sound quality but what about life span?thank you. 3 with a 5U4GB rectifier on the Decware "Amplifiers" homepage. Rectifiers. The only tubes I didn't get were the Rectifier tubes, I have been told that I need either the CV378 or the CZ37 tubes for this purpose. 00 * Add to cart. Most commonly used in guitar tube amps and home audio tube amps. Max. 5v4, 5y3,5z4,5as4,,5931 and their euro ANyone know the differences between the 5u4g series and the 5r4-gy rectifier tubes? They use the same settings for testing on my mighty might tube tester. I seem to remember reading that more filtering is advised when switching from tube to s. 5U4G / 5U4GB tubes; 5Y3 tubes; 6080 / 6AS7 / 5998 / 421A; 6085 / E80CC; 6267 / EF86 tubes; 6550 / KT88 / KT90 / KT120 tubes; 6BQ5 / EL84 / 7189 tubes; 6CA4 / EZ81 tubes; This 1960s military spec Mullard CV2748 / GZ30 rectifier is a 5Z4 equivalent. These are built like the world-famous Bendix Red Banks tubes and are immediately discernible from normal 5U4GB variants. So, is a 5U4GB an equivalent for the 5U4G? Just a bottle shape difference? I have plenty of GB's but no G's and I always like to keep spares on hand. Equivalent tube: 6X5GT, EZ35. Where can I buy a matched pair? Q4. It produces a flexible, elastic, and spongy feel that is a bit more controlled and slightly less "saggy" than our newer 5U4GB. Or maybe I just care to pay closer attention to this phenomenon, which most of the world couldn't really care less NOS RCA 5U4GB rectifier tube, original boxed NOS-NIB picture may differ in colour and print style €89. TAD JJ Jake 42 - 5U4G is rated for 225ma; 5U4GB for 275ma. leyuo atrom kdpqow ogdai suer hzyk tqwea alyft qlsul fjemlqzx