[Heathkit] Looking for SB240 schematic

[Kathy & Jürgen]

> My gosh - I thought I had one of two 240's!  It's the
> same schematic as the 220, Jurgen, and gl.
> Mike, W8KRR


Well Mike you're not the only one, and I know of at least two here in N/W
Indiana but I think the other one has been used for parts. Unfortunately it
was never marketed. Would have been a good one. Yes it was basically a SB220
using a pair of 3-500Z's with enhancements such as . Inrush current filament
protection, broadband toroidal input network (easy to use on 17 and 12  or
30 of course not legal there) and an output SWR bridge. Think the power
transformer is also a heavy duty Peter Dahl Transformer. The face was green
with black trim and the red 104 line plastic  to match the SB104 solid state
rigs.
I have used the SB220 manual for it but would have been nice to have
something in writing about the enhancements.   Jurgen N9RD