The Alda 103 on CW

pot-on-alda-cw-osc-level-1
Figure 1: CW oscillator level control on the Alda 103 (see text).

I had been operating the Alda 103 CW/SSB triband ham radio, a gem from the seventies, for a couple weeks on the SSB end of forty meters. I received nothing but good reports, such as “very clear and clean” – and “an easy to listen to signal” since I resolved an issue with the microphone input impedance, which on the Alda is slighty different than *any* other amateur transceiver. This was done by putting a Triad audio impedance transformer between the Alda and the Shure 414A Hi-Z microphone…

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About ronaldscheckelhoff

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