UW3DI- the Timeless Transceiver:
by Igor Grigorov, RK3ZK
Schematic of the transceiver UW3DI at first time was published
in 1970 at a Soviet ham magazine "Radio" # 5-6. The transceiver
was named UW3DI by the callsign of its author, Jury Kudrjavtsev. Jury
probably did not ever suspect, that his transceiver would be the most
popular transceiver in the USSR and tens thousands copies of the transceiver
would be made by Soviet hams.
PDF file, 530 KB (ANTENTOP-02-2004, pp.: 81- 85)
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UW3DI- the Timeless Transceiver