Get the best deals on vintage rectifier tubes sockets when you shop the largest online selection at. They seem to know just when to givein to get that wonderful rectifier sag. Whether you will like the change a given tube is always the questionbut it is another lever to pull in dialing in a system. 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. The amperex gz34 5ar4 tube is considered by many to be one of the best gz34 rectifier tube ever made. The telefunken gz34tk is an excellent replacement for any amplifier using gz34 or 5ar4 rectifier tubes. A killer tube, but huge and requires lots of space bigger than a kt88. I neither know the effect of the rectifier on the overall sound. Amperex 5ar4 gz34 orange globe top quality rectifier tube great britain strong. I tried a 5y3 and it was a little weak sounding, too much drop in voltage. Im just concerned that the stock 5ar4 tube is running too hot, it glows orange from top to bottom. Essentially an all glass valve fitted on an io base cap. The compact size is in part achieved by the use of a pressed glass foot rather than a pinch.
Mullard gz34 5ar4 rectifier tube audiogon bluebook. Gz34, 52ku, 53ku, 54ku,gz30, gz32, gz33, gz37, r52, u54, u77, 5r4gys from philips the mullard gz34 is king of the hill. The 5ar4 gz34 has the least vdrop, then the 5v4, then the 5r4 and. The 5ar4 and gz34 is an indirectly heated cathode tube. Make offer matched pair mullard gz34 5ar4 rectifier tubes, brand new in box. To view this site, you must enable javascript or upgrade to a javascriptcapable browser. Rectifier comparison and interchangeability chart kca. I remember reading in dave funks book that production of gz34 5ar4 s had stopped, affecting the supply and therefore the cost of building fenders with this tube.
Supplied in white boxes tube printing etc will be different from picture shown. Mullard 5ar4 gz34 metal collar rectifier vacuum tube tv2 57e double tested. By having this information on a chart you can choose a rectifier tube that will best suit your playing style. In addition, when changing to a higher output rectifier in a self biasing aka cathode biased amp, eg, champ and others never assume that the power tube s isare safe. Since worldwide production obviously didnt halt didnt mean to imply that it did, it was. This model of yellow jackets converter, the yjr, is an adapter for use in most amplifiers which use 5ar4, 5u4, or 5y3 tubes or other similar tubes.
Vacuum tube 5ar4, ruby tubes antique electronic supply. Increasing the cathode bias resistor is often necessary. The mesa 5ar4 rectifier tube produces a vintage feel with light to mild sag. I also have noticed that a general 5u4grectifer tube rolling. Pure power and the typical sag is the distinguishing characteristic of the most popular guitar amps of the 1960s. We also use these in mesa dual and triple rectifier amps in place of the stock 5u4s to get a little less sag but to maintain that rectifier sound.
I have been wanting to create this thread for quite some time now, since i often receive pms and questions asking for advice on tube rolling. The sovtek 5ar4 rectifier tube also known as a gz34 is our most popular. I cant speak for te longevity of this tube yet since i havent had it for that long, but performance to date is great. My anthem has originally had a 5ar4 but came with a jan 5y3gt in the power supply. The gz34 isnt a very talked about tube, but it is one of the most common rectifier tubes found in audio, especially in guitar amps. All i have is the tung sol reissue 5ar4 as the rectifier in my tom mcnally 6bq5 set amp and im happy with the sound. This yellow jacket is a solid state device and as such does not come with a vacuum tube. Decided to order the ruby and it was perfect in both sound and feel. The fat bottle philips, the copper plate ge, and the cream of the crop the mullard gz34. Timbre wolf goldmember supporter gold supporting member. I have rolled 5ar4 types in my lampizator golden gate, and it can have a big influence. This makes them good substitutes for the other rectifier types when different output voltage is desired. Premium directly heated heavy duty rectifier diode. The 5ar4 is a compact high current full wave rectifier for use in high current small equipment.
These tubes were produced in 1969 at the mullard blackburn factory in great britain. All the recent posting about creates rectifier tube sure has got me curious about how it would sound. Rectifier comparison and interchangeability chart kca nos. Keep in mind that the 5v4 is an entirely different rectifier tube if the op is asking for good gz34 5ar4 options. I put a jj 5ar4 in it and didnt like it at all it was harsh sounding and stiff. The tube will burn out prematurely if the amp demands more than 125ma on a regular basis. Tungsol tubes reflect the best in vintage construction with unsurpassed tone and reliability.
National electronics 5ar4 gz34 rectifier tube with box nos ussr. Make offer single one mullard gz34 5ar4 rectifier tube, brand new in box. Im using a vintage mullard and really enjoy the sound. The philips 5r4gys is a recent find by upscale audio in upland. Unfollow mullard 5ar4 gz34 to stop getting updates on your ebay feed.
This is a chart showing the specifications for 5 volt rectifier tubes that can be used in guitar amps. To be a good sub, it must be indirectly heated most 5 volt rectifiers are directly heated, but the 5ar4 gz34 isnt. If you want to experiment with a 5ar4, all that will happen is your voltage regulation will either increase or decrease, i think the 5ar4 rectifiers a little better so it will. Brand new genalex reissue gz34 5ar4 u77 rectifier vacuum tube in box. Tube 5v4 or rohre 5v4 id6374, highvacuum rectifier, octal int. A perfect tube to replace the chinese or sovtek 5ar4 s that.
Rectifier tubes tagged 5ar4 gz34 5r4gy upscale audio. The more of a voltage drop dcv drop you have the more sag or compression you will have. The 5u4g is no longer the tube of choice for new mesa amps that feature a 5u4 type rectifier tube. Im thinking about replacing the stock 5ar4 tube in my drri with a 5u4 tube. Mullard gz34 5ar4 rectifier tube pricing information. So summarizing, we are starting with the following conditions. The vdrop is the voltage drop across the rectifier, those numbers 17, 25, 60, 67 are oversimplified, the actual vdrop will depend on the actual incoming ac voltage becing rectified.
Last, if you want something cheap but decent there is a chinese rectifier called 5c3pj that subs perfectly. Tube has orange globe amperex logo, single halo getter, and notched plates. Apr 08, 20 trying to make heads and tales out of it, it says in the manual the 5ar4 gz34 rectifier tube may be exchanged for other equivalent type rectifier tubes of the 5ar4 gz34 family. Tube 5v4g or rohre 5v4g id3302, fullwave vacuum rectifier, octal int. This gz34 5ar4 tube is robust and works great in many different guitar amps such as vox and fender amps, but also vintage hifi like dynaco and scott. The jj gz34 5ar4 tube is another affordable replacement rectifier tube for both guitar and hifi tube amplifiers. I cant speak for te longevity of this tube yet since i. Here in north america the main power is 120v at 60 hz so vm 120v and fm 60hz. I have the modwright tube oppo 83 and it uses a 5ar4 in the power supply unit. Vacuum tube 5ar4, sovtek antique electronic supply. Rectifier tubes 5ar4 gz34 5r4gy tube basics and faq. These are used but test at nos levels, various brandings available, but made by mullard.
Dont cheap out on rectifiers davemccarthy707, apr 25, 2009. Brand new jj electronic gz34 5ar4 rectifier vacuum tube. You can use acrobat for viewing and printing pdf files. I usually tend to use 5u4gbs as the rectifier when needing a high current tube rectifier and account for the larger voltage drop with the correct transformer however the 5ar4 gz34 is a good tube as well.
Philips gz34 5ar4 metal base rectifier tube early rsb date code. I like jj for power tubes but the ruby is perfect for the rectifier. Converts most audio amplifiers which use a vacuum tube rectifier 5ar4, 5u4 or 5y3 to this solid state device. Using a 5ar4 in place of a 5y3 amps harmony central. Jj electronic matched pair 2 gz34 5ar4 rectifier vacuum tubes brand new. The 5ar4 and gz34 is an indirectly heated cathode tube which means it takes longer to warm up. Solid state rectifier for 5ar4, 5u4, 5y3 tubes antique. Sep 09, 2007 my anthem has originally had a 5ar4 but came with a jan 5y3gt in the power supply.
Always check the bias and idle power of the tube with the new rectifier to be certain that it is running within spec. I usually tend to use 5u4gbs as the rectifier when needing a high current tube rectifier and account for the larger voltage drop with the correct transformer however the 5ar4gz34 is a good tube as well. How much does tube brand really affect sound in terms of. Rectifier tubes absolutely change the sound of your gear as much as small signal tubes and power tubes, ime. Im not a tube expert and this is the first time i will change the tubes on my vox. However the manual states this tube the 5ar4 may be replaced with the 5y3 rectifier tube.
While it produces more sag than silicon diodes, it is the least saggy of our tube rectifier offerings. Helps extend the life of the other valves in the amplifier by allowing them to heat up before plate voltage is applied. Book depository books with free delivery worldwide. The f32 code is visible and the tubes are in original boxes. Probably the most renowned 5ar4 rectifier tube, the mullard really makes a difference in your hifi or guitar amp sound. The envelope contains two flanged anodes that are carbonised for greater radiation efficiency. They produce a similar voltage drop to 5u4 rectifiers but require only 2 amps of heaterfilament current from the power transformer as opposed to 3 amps for a 5u4. Ths is my 3rd sovtek 5ar4 rectifier tube i have bought for three different diy amplifiers. Solid state rectifier direct plugin replacement for 5ar4, 5u4 and 5y3 rectifier vacuum tubes in amplifiers with center tapped secondary power transformer.
Reissue of the most popular rectifier valve ever built by mullard. We are happy to accept your order at and also through our call center. Your rectifier can be able to handle up to 225ma, but will not make your amp use 225ma unless your combination of power tubes and preamp tubes are passing it. However, ive read somewhere that the tungsol gz34 and the mullard gz34 ate the common standard for these kind of tubes.
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