[Boatanchors] any users of 813 amps out there?
w2iy at verizon.net
Sat Sep 29 21:54:28 EDT 2012
A really neat RF deck with a pair of 813s followed me home from a hamfest
last weekend. Really well constructed by W0LIO in 1973 (it is so labeled!).
I have spent this week looking around for possible sources of schematic
information but almost everything I encountered was either a single 813 or a
grounded-grid circuit. I haven't checked carefully, but I think this one is
not GG because of the robust tuned circuits at the front end. Might anyone
have a lead to any relevant information? I checked the QST archives and my
old handbooks (1961, 1968, 1978, 1981, 1988, 1992, and 2006) with no
success. Google brings up hundreds of relevant hits, so many that I got
overwhelmed. Anyway, so far no joy. If I can figure this out (and build a
power supply for it) I may consider selling my Thunderbolt as it weighs
about as much as a small planet and it's just getting too hard to wrestle
around any more. Any help greatly appreciated.
Thanks for reading and 73 to all,
More information about the Boatanchors