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Milen 25th January 2008 05:22 PM

Help me to identify unknown tube

As you can see on the tube base is written "036" and "A.25.52" "F8.0". The anodes are big and flat... The base is like on AZ1, but I cant't find similar AZ1 to this...

jnb 25th January 2008 10:06 PM

Looks somewhat like a dual diode.

Milen 25th January 2008 10:09 PM

Yes, it is dual diode...

Wavebourn 25th January 2008 10:41 PM

Looks like German socket.

I never heard of such tube. May be AZ11?

Here is some interesting document:

dhtrob 26th January 2008 08:42 AM

I am almost sure it is an AZ4. This one has a P-socket and has abot the same ratings as a RGN2004.

jnb 26th January 2008 11:43 AM

Hoping this may help.


showdown 26th January 2008 11:58 AM

Looks a LOT like the AZ4 I have here...

dhtrob 26th January 2008 02:48 PM

to be even more specific: I think it is a Tungsram AZ4. The plates are placed really close together, almost in the center of the glass-bulb. I only have seen Tungsram tubes having this structure..

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