SSB Adapter for R-390 and R-390A For Sale -
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SSB Adapter for R-390 and R-390A:
$97.30
These are classic receivers for AM and CW, but were neverintended for SSB. With this adapter installed, they provide excellent SSBperformance. In AM mode, the adapter is switched out of the circuit, so AMperformance is unchanged. Turning the BFO on switches in the adapter, whichuses a product detector and dual-time-constant fast-attack AGC system for SSBreception. The unit mounts on the back of the receiver. With minor exceptions,all controls operate as before.
We have been making SSB adapters for Collins receivers since 2009. Although the implementation details are necessarily different, the underlying circuit techniques and design philosophy are the same as those in our highly regarded adapters for other Collins receivers.
Some under-the-chassis work is required to install theadapter. We recommend that you go to download the Owner\'s Manualbefore buying.
We\'ll also be glad to respond to questions.
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