[ARC5] Backwave

[WA5CAB at cs.com]

Larger sets that don't work this way (relays) generally run fixed bias 
supplies to the rest of the exciter and the final to cut them off key up.  And 
the oscillator is simply keyed.

In a message dated 10/25/2015 20:41:19 PM Central Daylight Time, 
arc5 at mailman.qth.net writes: 
> Well I had no idea what a backwave was, so I had to look it up. There 
> isn't much out there either! 
> Anyway, it seems that one of the accepted solutions is a "grid blocking" 
> circuit to kill the spurious signal.
> The original relay clackty-clack which keys the osc and finals 
> simultaneously works pretty well if you have a stable supply.My curiosity was piqued 
> when I saw the original design, so I wanted to try it "their way". No modern 
> post WWII stuff works that way, so it was "new to me" in that sense, just 
> like backwaves. This group has been an education for me.

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480