[ARC5] Restoring a BC-455-b, request advices

[Kenneth G. Gordon]

On 1 May 2016 at 17:28, J Mcvey via ARC5 wrote:

> 
> I think c30 is the 3 uf on the AGC line?

No. C-30 is the 12A6 cathode bypass capacitor and is 15 MFD at 35 VDC. AGC was not 
included in the BC-455 receivers. AGC was added to later AN/ARC-5 and possibly ARA 
receivers. The change from the 12SK7 to a 12SF7 for the 2nd IF tube provided a diode for 
the AGC. This enabled AGC to be permanently in action, even with the BFO on.

> I used an electrolytic there. What is the 
> C5 value?

3 mfd.

> Almost all can be replaced with mylar. In fact, you can get 3.3uf in 
> mylar non polar, but will it fit in the can?

Dunno. Might.

>  Yes, replace the caps with the same 
> value.
> 
> If you are good with soldering, you can make the seam very inconspicuous, 
> looking  like it was part of the manufacturing process.
> The "pots" are brass and solder very easily.

Yes.

Ken W7EKB