[Heathkit] DX-60B Plate Coupling Capacitor

Kenneth G. Gordon kgordon2006 at frontier.com
Sat May 15 22:18:07 EDT 2021


On 15 May 2021 at 18:56, Mark K3MSB wrote:

> Hello
> 
> The manual says this capacitor is a "Molded Mica".    I want to verify that
> it is indeed a mica capacitor, and not a "Micamold" type cap which is a
> paper cap (and yes, I know Micamold was a brand name).
> 
> If it's truly a mica cap,

It is.

> I'll leave it alone.

Good idea. It is fine.

"MicaMold". the trade-name, capacitors are almost the worst such capacitors ever made, 
rivaled in their "quality" only by "Black Beauties".

FYI, I recently restored a National NC-57 receiver which was full of those MicaMolds. Out of 
some 20 MicaMold capacitors, I found only one which wasn't completely shorted, and that 
one was too leaky to use.

The receiver works amazingly well with all of those replaced by modern 630 V jobs.

Ken W7EKB


More information about the Heathkit mailing list