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Green eye tube won't turn green!
Eliot Ness
Phorum Expert
*****
Posts: 3,135
Threads: 54
Joined: Apr 2011
City: Lexington, KY
#2

08-25-2017, 08:22 AM
I'd double check all the voltages while the tube is plugged in.  If you don't have a tube manual the 6U5 is p. 141 in the following manual:

http://www.tubebooks.org/tubedata/RC15.pdf

It sounds like your plate voltage might be missing or low.  That 1 meg resistor (if open) will keep the eye from closing.
John KK4ZLF
Lexington, KY
"illegitimis non carborundum"
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Messages In This Thread
RE: Green eye tube won't turn green! - by Eliot Ness - 08-25-2017, 08:22 AM
RE: Green eye tube won't turn green! - by morzh - 08-25-2017, 09:09 AM
RE: Green eye tube won't turn green! - by morzh - 08-26-2017, 07:47 AM
RE: Green eye tube won't turn green! - by morzh - 12-27-2017, 06:11 PM



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