[Hallicrafters] Inductance measurements

[Troglodite at aol.com]

In a message dated 12/2/05 1:28:20 PM Central Standard Time,  
roy.morgan at nist.gov writes:

> Far better is the General Radio  650A bridge - an antique in 
> wooden case but still offered on the  auction place from time to time. This 
> thing is not easy to operate, but  it's a joy once you get used to it.
 
Ah yes, I have one of these. (Or something very close.) Mine is a metal  
cased version, but still a tube model requiring a 1.5V and 45V battery. One of  
these days I'm going to make an inverter for the 45V, because those batteries  
are outrageously expensive these days, and have a shelf life less than a year.  
And for those of you that have one of these GR jewels, remember to lock the  
galvanometer when not in use.

> I like the old classic stuff. At my  place it is both much appreciated and 
> repairable.

Amen! And even  if used infrequently, you can usually remember HOW to measure 
something without  having to resort to looking it up in the manual. :-)
 
Doug Moore