National NC300 restoration hints needed.
"Grumpy The Mule" wrote in message
...
I use an NC-300 as my main receiver for AM.
Replacing the frequency determining L-C network of V3,
the second converter, with a crystal (like the NC-303)
is worth the effort. Then IF will stay in alignment.
Being somewhat off center, I'd obsess about a means
to tie that LC network to the BFO, get them to track,
and call it variable passband tuning.. But I am not
wrapped too tight.
Pete
|