T9K39 ("Main")
- Kriegsmarine (German Navy) HF communications receiver.
1.5-25.0 MHz, A1 / A3.
Using all similar tubes - RV 12 P
2000 pentodes. Manufactured by Telefunken from 1939.
Many features
of T9K39 have been employed later in Telefunken E 52 and E
53 receivers.
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