[Heathkit] More on the SB-10

[Peter Markavage]

That's why a 5 or 10 turn set of carrier nulls pots work a lot better for
nulling the carrier. You don't have to keep diddling with pots once you
set them. Also, the 6201 tubes in the balanced modulator help to improve
suppression.

Pete, wa2cwa

On Wed, 14 Mar 2007 20:56:18 -0500 Rodger <wq9e at dtnspeed.net> writes:
 You generally will need to either let the 
> unit 
> warm up for awhile before use or readjust the carrier balance pots a 
> few 
> times during warm up.  This is an area where Gonset had a good idea 
> with 
> their GSB-100 SSB transmitter, it uses a single crystal in a carrier 
> 
> notch circuit and thus the carrier balance controls are not as 
> critical 
> on it; finding a GSB-100 with an original power transformer is 
> somewhat 
> rare however.
> 
> Also, VFO drift is going to be a bit less on the lower bands which 
> again 
> favors an emphasis on LSB.
> 
> Rodger WQ9E