Search found 4 matches

by Ron Reeland
Tue Aug 18, 2009 4:22 pm
Forum: Up For Grabs
Topic: looking for article in old PE magizne
Replies: 1
Views: 1946

Re: looking for article in old PE magizne

Craig: Are you still looking for the Popular Electronics SSB article? I have a copy and would be glad to mail it to you no charge. Just need your snail mail address. I will try to reach you via E-mail, but in case I don't get thru, you can reach me at: [email protected].

Ron Reeland
by Ron Reeland
Tue Aug 18, 2009 4:04 pm
Forum: General Discussion
Topic: Analog Meter Protection
Replies: 7
Views: 1378

Re: Analog Meter Protection

What type of solid state device is connected across the Simpson 260 meter? It is labelled V1. Is it a standard industry type? Seem as though if it can protect a 50 uamp meter that it would be suitable for use on less sensitive meter. I notice that the Simpson needs 80 millivolts for full scale readi...
by Ron Reeland
Mon Aug 17, 2009 5:25 pm
Forum: General Discussion
Topic: Analog Meter Protection
Replies: 7
Views: 1378

Analog Meter Protection

Hi: I restore and tinker with old test equipment, particularly vacuum tube testers. The analog meters on these old instruments are easily damaged by pegging the pointer. In severe overloading , burning out the meter coil is the unhappy result. Conventional wisdom is to attach a silicon diode across ...
by Ron Reeland
Wed Jan 10, 2007 2:21 pm
Forum: General Discussion
Topic: Motors as Generators
Replies: 21
Views: 4440

Motors as Generators

Hi: Text books on electric motors state that any electric motor can also function as a generator. I have no problem with using permanent magnet D.C. motors as D.C. generators. But A.C. motors are another matter. I have tried to use small shaded pole motors as generators without sucess. These are the...