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Old 08-14-2019, 08:37 AM
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Fran604g Fran604g is offline
Love at first sound...
 
Join Date: Mar 2006
Location: Hemlock, NY
Posts: 76
Quote:
Originally Posted by Electronic M View Post
These sets expected 500 ohm headphones / speaker or higher impedance. If you don't have proper 20s era phone's get the audio output transformer from a tube radio and use that to match the impedance.
Thanks Tom.

An addendum to an earlier post I made:

I uncovered a section of the wiring harness viewed under different lighting, and discovered that the wire I initially thought was Red (B+90V) is actually the Maroon (B+45V).

THAT makes more sense. The schematic has been edited to reflect this discovery. I'm still curious as to why there would've been shown an unknown connection off of V31, and V51?
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File Type: jpg ERLA S-11 SN-16149 SCHEMATIC AMENDED 8-14-2019 FWP.jpg (68.0 KB, 7 views)
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