DSB

[John M Iverson]

HI  i built a DSB rig, mobile tet out of a command set tx.  changed the
tubes to 807 and drove the screens with a 6L6 GT. biased the 807s to
cutoff.. worked. 40 m.   jack
Jack Iverson    K0EWU    jackiv at juno.com

On Tue, 25 Aug 1998 05:58:27 -0400 Brian Carling <bry at mnsinc.com> writes:
>Hi,
>
>Has anyone here ever tinkered with some of the earlier DSB designs
>from the 1950s that used a straight through 2 tube  final and screen
>mod to produce a carrier nulling effect?
>
>I was reading in an old CQ about a design that used something like a
>pair of 807s with a low power modulator. It was set up so that you
>could switch one half in and out on the mod xfmr secondary to go
>between AM and DSB thus balancing or unbalancing the modulator to
>produce the required signal.
>
>It looked like a fun design that required no phasing or filtering and
>would be an inexpensive way to make some serious talk power for
>minimum component outlay.
>
>Has anyone on the list ever built one of these things perchance?
>
>Regards - Bry, AF4K
>
>****************************************************
>*** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA  *
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>AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant,
>DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster.
>TEN-TEN #13582, DXCC #17763, Bicentennial WAS
>
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