Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube - diyAudio
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Old 28th June 2005, 11:47 PM   #1
Klimon is offline Klimon  Belgium
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Default Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube


Does anybody know how much the voltage drop of a AZ11 = AZ1 = RGN1064 rectifier tube is? I looked at many datasheets, but cannot find it - or is it in the curves that I should look?

I'ld like to use it in an schematic that uses 5U4, if Az1 loses less voltage it's no problem, otherwise my amp will be short of voltage!

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Old 29th June 2005, 04:51 AM   #2
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Location: Bulgaria
Regarding datasheets at 70mA for example AZ1 drops about 34V. This is a plate resistance of 485R. AZ11 has almost identical plate resistance.

If you are looking for low loss, good sounding and high current rectifier you should look for GZ32 tube.
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Old 29th June 2005, 10:19 AM   #3
Klimon is offline Klimon  Belgium
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Join Date: Apr 2005
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Hello reaction,

Just found where to look now you gave me one 'solution'.

Voltage drop at 75 mA: 5U4=25V / AZ11=40V / GZ34=6V!!! The GZ32 drops a little less than the 5U4 and still some more than the GZ34...

I'm gonna go for the GZ34 as they have a good reputation (except for the Chinese, although my local tube-guru finds many Chinese tubes including these excellent...) and I have some new production JJ's and nos Siemens lying around.

Thanks for the help; it's been noted for future use that you like the GZ32!
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