Help on Really Old Tubes

Dave Hollander davidh at GETNET.COM
Thu Jul 22 02:17:17 EDT 1999

Greetings all -

I have some really old tubes that I need to test, they are a





These are all Cunningham tubes (all 4 prong bases) out of a 1925 Browning
Drake Receiver. I thought for sure that my really old Hickok would test
them (The chart in this tester is dated 1940 but they are not listed. Do
these tubes go by some other equivalent numbers?

Any help would be appreciated. This is a bit older than I am used to
working with.

Tnx and 73,

Dave N7RK


Dave  N7RK -  Webmaster CADXA
Phoenix, Arizona         *DXCC Honor Roll*    *WAZ#23 - 75 Meter SSB*

                 ex-N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX

Boatanchor Collector Extraordinaire preferring Hallicrafters, National
and what ever else looks interesting!

E-Mail: davidh at
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