[Elecraft] tools 2

[L. D. Ingram]

David,

Also see if it has a selenium or tube rectifier for the power supply - 
these can give trouble too when they age, especially the selenium rectifier 
(it will probably look like a couple of small plates about the size of a 
postage stamp pressed together with the mounting screw passing through the 
middle and two connection lugs, one on the top and one on the bottom). you 
can replace the selenium rect with a regular diode of the appropriate 
voltage and current rating. For that matter, you can replace a tube with 
diodes too.

73 Larry Ingram   AG4NN

K2 #2529

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David,
I would recommend doing some work on your Simpson if you like it. Since it 
is a VTVM, you may need to get a new tube for it. And, I would recommend 
replacing the electrolytics in it as well. There may be other 
non-electrotics in it as well that may have changed in value as well. But 
with some normal maintenance on the parts, you should be able to have it be 
claibrated and be as good or better than new!
since you already have a DMM handy, I think you will enjoy your VTVM after 
a bit of TLC. (Besides, it gives you something to tinker with after the 
Elecraft stuff is all built!!)
Tim Raymer
73 de KA0OUV


At 16:18 10/20/2002 -0400, you wrote:
but my real problem is I have a simpson electric company analog volt ohm 
meter, when I hook it up it reads low on dc voltage



the analog meter says it is a vacuum tube volt meter and is a simpson 312.
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