[R-390] re: Call for measurements - 100dB carrier reading

[Bob Camp]

Hi

Just about *any* pot will work just fine. Another approach is to put  
a very low value pot in series with a fixed resistor.  There's not a  
lot of power involved here. The only risk is that if the circuit  
opens up you may loose the meter.

Bob


On Aug 30, 2007, at 1:13 AM, Perry Sandeen wrote:

> Gents,
>
> over the years the 100 ohm pot was replaced 10 turn pots but still  
> using a 2 watt unit.
>
> IIRC, Chuck Felton in his ER article on R390 upgrades shunted the  
> post with a low value 1/2 watt
> resistor.
>
> The question becomes: Could one use one of the multi-turn cermet  
> type pots instead? They are cheap
> and plentiful.  Multi-turn 2W pots are in the $20 range now.  I do  
> concede the point that is won't
> look "original".
>
> Had anyone tried this?
>
> Regards,
>
> Perrier
>
>
>
> ______________________________________________________________________ 
> ______________
> Be a better Heartthrob. Get better relationship answers from  
> someone who knows. Yahoo! Answers - Check it out.
> http://answers.yahoo.com/dir/?link=list&sid=396545433
> _____________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/faq.htm
> Post: mailto:R-390 at mailman.qth.net
> Unsubscribe: http://mailman.qth.net/mailman/options/r-390
>