Help on Really Old Tubes

[Dave Hollander]

Greetings all -

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

UX-171A

CX-301A

CX-300A

CX-340

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 getnet.com
My Home Page:  http://www.getnet.com/~davidh

Visit the Central Arizona DX Association Home page - http://cadxa.org

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