[Milsurplus] BC-342/BC-344 Question

Robert Kilian robertkilian at ostechnologies.net
Tue Nov 5 14:20:55 EST 2019


The wax-paper Micamold caps (that look like dominos) typically have gone 
bad, and there are a handful used as B+ bypasses that are absolutely 
critical to be replaced.  Unfortunately, some of those are in the RF/IF 
cans which be slightly tricky to remove, but not bad if you document 
connections with photographs and take your time.

I've never encountered a bad oil bathtub in one of these sets, but 
others may have had different experiences.

Rob Kilian
K6RBK

Additionally

On 11/5/19 10:32 AM, Joe Connor via Milsurplus wrote:
> What's the current thinking on cap replacement in these receivers? I 
> wouldn't trust the 75-year-old electrolytic caps in the power supply 
> or the Micamolds located throughout the set, but what about the 
> oil-filled bathtub caps? Do you replace them as a matter of routine, 
> or do you wait until one of them acts up?
>
> The triangular piece of metal attached to the Vernier knob has some 
> rust. What do you folks use to clean and shine a piece like that?
>
> As always, thanks for your guidance.
>
>                         Joe Connor
>
>
>
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