[heathkit] Frequency jumping

[Alan Beck <becka@eastlink.ca>]

Thanks Bob,

I suppose it is time to order deoxit switch cleaner. What do you use for
grease and freeze spray?

73,

alan



On Sat, 2008-31-05 at 04:08 -0400, G3OOU@aol.com wrote:
> Hi Alan
>  
> I had this problem on an SB101 and it turned out to be dry wiper
> contacts on the VFO tuning capacitor. After 30+ years the grease had
> finally dried up. Some switch cleaner and fresh grease stopped the
> problem. I suspect that the original engineers never expected their
> designs would survive such a long period.
>  
> If that does not fix the problem then look for dry joints or faulty
> components in the VFO including any valve socket contacts. A freezer
> spray helps with intermittent faults.
>  
> 73
> 
> Bob 
> G3OOU
> G-QRP 6907
> http://members.aol.com/rfcburns