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RCA R-32 Speaker
Eric
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Posts: 451
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Joined: Nov 2011
City: Cumming, GA
#3

04-08-2021, 10:43 AM
Hey Terry
I have never come across a FC with such a high resistance before (not that I'm that experienced). Usually they seem to fall in the range of 650-2000 ohms but this is such an early set for me.


Input is 110vac resistance across FC is 7K Ohms
So I checked the voltage drop across the FC and I get 222vdc
The individual FC leads are
 302v
 -81v
  221v

the plate voltage from #1 45 is 290vdc
         "         "        "   #2 45 is 302vdc 

so E/R, 222v/7000r=.03a
E/R, 222/.03a=7400 ohms
So it looks like @ 7K the field looks good? Or the bigger question is my math correct!

Thanks
Eric
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Messages In This Thread
RCA R-32 Speaker - by Eric - 04-07-2021, 05:34 PM
RE: RCA R-32 Speaker - by Radioroslyn - 04-07-2021, 05:55 PM
RE: RCA R-32 Speaker - by Eric - 04-08-2021, 10:43 AM
RE: RCA R-32 Speaker - by OZ4 - 04-08-2021, 11:55 AM
RE: RCA R-32 Speaker - by OZ4 - 04-08-2021, 12:11 PM
RE: RCA R-32 Speaker - by OZ4 - 04-08-2021, 12:20 PM
RE: RCA R-32 Speaker - by OZ4 - 04-08-2021, 12:50 PM
RE: RCA R-32 Speaker - by Eric - 04-08-2021, 05:42 PM
RE: RCA R-32 Speaker - by Eric - 04-09-2021, 09:39 AM
RE: RCA R-32 Speaker - by rghines1 - 04-09-2021, 05:07 PM
RE: RCA R-32 Speaker - by OZ4 - 04-10-2021, 10:17 AM
RE: RCA R-32 Speaker - by Eric - 04-10-2021, 11:48 AM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)