[Milsurplus] BC-610i Restoration...

Kenneth G. Gordon kgordon at moscow.com
Thu Dec 1 11:44:02 EST 2005


Rick Brashear wrote:

> I'm looking for several key parts for the restoration of a BC-610 I 
> Model.  The main things I am missing are:
> 
> Modulation Transformer (naturally)

Naturally...

> CH4 - 2.5mh RF Choke (10 ohms) current rating unknown

Rick:

If this is the big RF choke which is normally mounted UNDER the 
phenolic board that the main tuning cap is mounted on, that choke is 
rated for 1 amp. In the "E" model it was paralleled with a resistor. The 
choke had a tendancy to burn out if the rig was operated on certain 
frequencies since it was resonate there. A different choke could 
probably be used. One interesting thing was that MY "E" model's RF 
output was identical with or without the choke, at least on the 
frequencies on which I operated it.

> C11  - 2000pf (.002 mf) @ 6KV molded mica capacitor

This is a standard cap. Shouldn't be difficult to find.

> All Tuning Units
> All Tuning Coils

Both of these, especially the plate coils, show up on Ebay regularly.

> 
> Any help locating these components will be greatly appreciated.  This 
> thing is in bad shape, but I know it can live again with lots of work 
> and attention to detail.

There are several articles in Electric Radio magazine on restoration of 
BC-610s. You might check their index at www.ermag.com

Good luck.

Ken W7EKB


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