[AMPS] SB-220 Meter Replacement

[NI4L]

here is a place that sells replacement meters
http://www.harbach.com/harpg3.htm

Walter Fairclough wrote:

> I've been told that the plate current meter on the SB-220 can be replaced
> with a meter from a Heath HM-102 wattmeter.  I've noticed that the meter
> movement on the one in the HM-102 is approx. 1/2" in diameter while the one
> from the SB-220 is larger at about 1 to 1-1/4" in diameter.
>
> I think the resistance in the SB-220 meter is approx. 1400 ohms and its FSD
> is 2ua. I don't know what the specs are on the one in the HM-102.
>
> Can anyone tell me if they are interchangeable or not? I'd hate to blow a
> good meter.
>
> Thanks
>
> Walter-VE3EN
>
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