[Hammarlund] Source for replacement SP-600 meters

[James A. (Andy) Moorer]

Folks, I managed to find a meter that can replace the original meter for the 
SP-600. It doesn't look quite the same. Here are some pix:

http://www.jamminpower.com/eBay/SP-600/meter.html

(despite the path name, I am not currently selling any of these meters 
on-line. If there is enough interest, I might, I guess)

It is nearly impossible to find one with the thin flange that the original 
had. This one has the thinnest flange I could find. It is from a meter from 
Surplus Sales of Nebraska (http://www.surplussales.com/index.html). It is 
their MTR-46241-L1. I put an overlay on the dial so that it looks just like 
the original. It has a 500 ua movement instead of the 200 ua movement the 
original meter had, so it is not quite as sensitive. To make it work just 
like the original, you really should replace R65 with, say, a 12K resistor 
(instead of the 22K). That has the side effect of knocking down the audio 
gain a bit, but my impression is that audio gain is not the real problem in 
the SP-600.

The meter goes for $35. I will post the overlay file if anyone is 
interested.

So, whadya think? Would you use a meter that looks like this on your SP-600?

James A. (Andy) Moorer
www.jamminpower.com