Rectifier Tube Chart/Cross Reference

[Justa]

I recently saw a post here with a reference to a nice tube rectifier chart listing all tube rectifiers, their respective filament currents, voltage drop, ect.  I believe it was put together by one of the moderators.  Could someone please post a link to the chart?

Thanks!

[Paul1453]

 

[Justa]

Thank you, thank you, thank you!!  :)

[eleventeen]

Pretty useful thing. But...you won't see 20 volts of drop from a 5Y3GT vs 60 on a 5Y3. A 5Y3 is a very droppy tube. I like to use them when testing out amps that use a GZ34 because I once bought a garage full of tubes and have 4 lifetimes' supply of 5Y3s....but in general, it's a common tube used in lightish consumer gear and much more expendable than a GZ34. I could blow a few up and not even care. Except in 40+ years of toobing, I don't think I've ever blown up a 5Y3!

[kagliostro]

I know that you can find 5Y3 (labeled) tubes that has a low drop, someone say they are new production tubes, other say they are rebranded (renamed) russian rectifiers of some kind


Franco

[HotBluePlates]

The chart is most useful when you use it as a guide to the relative voltage drops of different rectifiers. 5U4 drops more voltage than a 5AR4/GZ34, but less than a new production/Russian "5Y3" which drops less voltage than an old-production/American 5Y3, etc.

[Justa]

Thanks, I'll remember to use the chart as a relative guide on voltage drop.  I love the chart as it has so much meaningful information in just 2 sheets.  Beats the heck out of looking them up individually!

[sluckey]

Here's a text file with a lot of info on rectifiers. I just saved this recently. Think I got it in this forum. Just remember, the voltage drop across a rectifier tube is not a constant value. IOW, you may have a 40V drop across a 5Y3 if the load current is 100mA, but that voltage drop might only be 25V at a load current of 50mA.

[Justa]

Thanks again Sluckey!