[Heath] SB-200 and AM

[Kenneth G. Gordon]

On 19 May 2018 at 23:44, jerrylofstead at bellsouth.net wrote:

> Oh yes! Controlled carrier the RF level varies at a voice rate.  DSB SC(supresed carier) was 
> produced by putting two tubes in push-push...  usually push pull grids and paralell plates.

Exactly! :-)

> Audio was applied to the screen elements. I ran dsb for a few years
> since as a kid, l could not afford a ssb exciter  A Central
> Electronics SB10 OR 20Watt SB 20. 

Central Electronics 10A and 20A. :-)

>  These were the first available in the 
> mid 50s.  DSB SC workrd great.  Google tht CE exciters for early SSB.

I still have an operational 20A and 455 VFO here. Neat rig. Does 160 meters and CW too.

Audio sounds superb, BTW. Much nicer than a filter-rig.

vy 73,

Ken W7EKB

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