I believe mine is a fairly late one. s.n. 3280. The manual front cover
says April, 1980 and the latest update on a schematic is 5-80.
73, Dan, N5AR
NOLL AMIDZICH wrote:
>
> Anyone out there know when (year) the 77dx/sx models were last produced and
> an approximate corresponding serial number?
>
> Thanks
>
> Noll W9RN
>
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