The jj gz34s is a modern production replacement for all classic gz345ar4 rectifier applications. Double anode rectifying tube gz34s is 5ar4 octal base rectifier diode. The chart is most useful when you use it as a guide to the relative voltage drops of different rectifiers. 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 sovtek 5ar4 rectifier tube also known as a gz34 is our most popular. If youre used to using the sovtek and chinese variants youll be pleasantly surprised. The data sheet will usually contain various graphs and tables of recommended operating conditions, some showing how much the voltage will sag with different load currents, so it should be fairly easy to extrapolate this information into your own design. The data sheet will usually contain various graphs and tables of recommended operating conditions. In particular tye gz34 has a lower heater current than many others of a similar ht rating. If this describes the rig you use, then this is one of two modern tubes you should consider. Gz34tk tube data sheet type base number of pins heater re parameter heater voltage heater current mechanical double anode rectifying tube tele fun ken uirements s mbol max 33,3 x octal 5pin indirect b a. The story is different with a twophase rectifier see later.
The wide glass tube envelope is 32 mm in diameter and, excluding the io base pins, is 72 mm tall. Extremely low noise and a lack of microphonics combine with excellent ratings for detail and harmonic content to provide a tube of exceptional quality. The gz34 is an example of a typical high current rectifier for small equipment use. Jj gz34 5ar4 datasheet pdf download adobe acrobat pdf reader. The starting volatge is 425 volts from a diode rectifier and each tubes specs drop from there. I like jj for power tubes but the ruby is perfect for the rectifier. The 5ar4 is a heatercathode twin diode designed for fullwave rectifier operation. The filament of this tube is designed to operate on a voltage basis, and should be operated at as near the rated voltage as is practicable. Fullwave heatercathode twin construction base basing outline maximum diameter. All our tubes are guaranteed for 3 months from the date of purchase. Western electric 422a electron tube pgscription the h22a is a double diode with indirectly heated cathodes. Decided to order the ruby and it was perfect in both sound and feel. Double anode rectifying tube 5y3s is an octal rectifier diode with a true directly heated cathode.
I put a jj 5ar4 in it and didnt like it at all it was harsh sounding and stiff. Effect of filter it is evident from the regulation characteristics of figures 4 and 5 that for a given output current and voltage, the chokeinput filter requires a somewhat higher alternating voltage. By having this information on a chart you can choose a rectifier tube that will best suit your playing style. Already downloaded it to a pdf file this morning, and stored in my tube stuff folder. Is the bendix the best sounding of these 5ar4 replacements, or are there 5r4s or 5y3gts that sound better and are very sturdy, reliable. Long enough so the rest of the power tubes are also ready to. High output current and small size make this tube especially suitable for. The compact size is in part achieved by the use of a pressed glass.
The 5ar4 and gz34 is an indirectly heated cathode tube which means it takes longer to warm up. The telefunken gz34tk is an excellent replacement for any amplifier using gz34 or 5ar4 rectifier tubes. Thanks to frank philipse for supplying the above pdf datasheet. Pdf 6d22s 6d22s russian diode gz34 svetlana tube gz34 gz34 rectifier sk509 5ar4 tube. Frank philipse pocnet mirror patrik schindler, 5ar4. Any exceptions will be noted on that tubes warranty tab.
Gz34 datasheet pdf 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. Sovtek 5ar4 datasheet pdf download adobe acrobat pdf reader. Gz34 full wave rectifier datasheet brimar thermionic products. The gz34 data sheet quotes vrms although personally i wouldnt trust a modern production bottle to handle this. The entire 1945 taylor tube catalog in pdf format note, 1. The sar4g7,34 is a high vacuum, full wave rectifier capable of oucput curreats up to 250 milliamperes. Gz34 datasheet pdf diodes also have peak and surge current ratings, but you gzz34 have to worry about these as they are always well in excess of what you need, provided the average current rating is adequate for the job. Warranty information and return policy warranty period. Gz34s 5ar4 double anode rectifying tube gz34s is 5ar4 octal base rectifier diode. If you cant find what you need here, try duncans tube data sheet locator. Jj electronic vacuum tubes, capacitors, amplifiers.
The jj gz34 5ar4 tube is another affordable replacement rectifier tube for both guitar and hifi tube amplifiers. Yes, i saw that nice mod for the sovtek 5ar4 to tweak it to reliability. The data sheet will also quote the maximum average dc current that the valve can handle. Sovtek power rectifier diode 450 250 480 150 450 250 375 10. Vacuum tube 5ar4, ruby tubes antique electronic supply. The more of a voltage drop dcv drop you have the more sag or compression you will have. Charagtmstics h e a t e r v o l t a g e kaiimum peak. The jj is a proper indirectly heated recreation that has the correct voltage output and feel. The 5ar4 and gz34 is an indirectly heated cathode tube which means it. 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.
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