[ARC5] BC-456 Modulator

[Mark K3MSB]

Hi Cliff

I would recommend performing the resistance checks per the manual.   It
takes less than 10 minutes and the manuals are readily available on the web
for free.

I'd also recommend replacing all the caps in the modulator:  C51, C53, C55,
and C57 can be replaced directly.   I chose to re-stuff C54 and C56 because
it was easy to do without it showing.

That's what I did with mine.

73 Mark K3MSB

On Tue, Aug 1, 2017 at 4:35 PM, Cliff Miller <cliff52 at gmail.com> wrote:

> I've seen information on checkout/refurb of command set receivers and
> transmitters, but haven't found anything for the modulator - what checks
> would you do on a new-to-you BC-456 before hooking it up to a transmitter?
>
> I don't have a dynamotor but do have a HV power supply with 550V and 250V
> available.
>
> --
> Cliff Miller W4HGR
> cliff52 at gmail.com
>
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