[Heathkit] Heathkit AT-1 Meter

[Lee]

NEVER put a magnet near a meter!!!  You could have permanently hurt 
calibration.  That said, you could have debris in the meter movement.  
You also could have a tight bearing at it's pivot points.

Lee, w0vt


On 6/28/2016 8:22 PM, Mark K3MSB wrote:
> I'm finishing up a Heathkit AT-1 transmitter.
>
> The meter tested good; I get full scale deflection at 10 mA, and a measured
> resistance of about 220 ohms.
>
> I tested the radio for the first time tonight and the meter acted normally.
>
> Somewhere along the line, the meter decided to stay about "high noon" even
> when power is off. The meter still tests good, and reacts as it should
> during tuneup.
>
> I removed the meter from the radio, and put a magnet near the meter and I
> can get the meter to go to zero, but it returns to "high noon" when I
> remove the magnet.
>
> Ideas? Some kind of residual magnetism?
>
> 73 Mark K3MSB
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