I have come across a surplus store out here in San Diego area. I found loads of tubes ( pulls ) Some are very old 4 pin. Lots of the common octal such as 50L6 35Z5 ect. Also new looking gas tubes such as 0D3 0Z4. Loads of 7 and 9 pin as well. If you need a tube Let me know and I will have a look for you. I just bought 6 tubes for $10.00 all test good and worked in my radios.

Warren: See if you can get '01As (4-pins, either globe or ST) - I'm in the market for a dozen. Also, a 6-pin Wunderlich detector (most likely Arcturus, blue glass. Thanks.
Doug

:I have come across a surplus store out here in San Diego area. I found loads of tubes ( pulls ) Some are very old 4 pin. Lots of the common octal such as 50L6 35Z5 ect. Also new looking gas tubes such as 0D3 0Z4. Loads of 7 and 9 pin as well. If you need a tube Let me know and I will have a look for you. I just bought 6 tubes for $10.00 all test good and worked in my radios.