[Heathkit] Differences between HG-10 and HG10B VFO?

[Tom NØJMY]

I agree with Glen.  It's not too bad.  Assuming that it's built well, 
which is not a forgone conclusion, any instability I've encountered with 
them has been mechanical.

I've had one or two that would suddenly jump in frequency if I was a 
little bit too emphatic with my straight keying.

I believe this to be a result of the bandswitching, dial drum-rotating, 
capacitor-turning, indicator-moving, tuning lash-up.  The sucker's got 
more moving parts than a Swiss watch.  Sometimes just a little brush 
against the bandswitch knob was enough to cause a jump.  Even after 
cleaning the contacts.

I've had a few others that didn't exhibit this problem.  Luck of the 
draw, I guess.

73,
Tom NØJMY.  .

www.hayseedhamfest.com
Multi-section Can Capacitors
for Heathkit, Drake, more...

Glen Zook wrote:
> Before or after about a 30 to 60 minute warm up period?
> 
> Seriously, after between 30 to 60 minutes they are pretty stable.  Just don't try to key it when sending CW.  If sending CW just let the oscillator run and key the stages after.
> 
> Glen, K9STH
> 
> Website:  http://k9sth.com
> 
> 
> --- On Fri, 1/16/09, David Thompson <thompson at mindspring.com> wrote:
> 
> If I build a very good outboard, regulated supply, how stable is the HG-10?
> 
>