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Zenith 7-S-240 Eye tube question
Eliot Ness
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Posts: 3,157
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City: Lexington, KY
#9

06-01-2016, 08:48 PM
(06-01-2016, 07:08 PM)Radioroslyn Wrote:  Well seem like your triode plate in the 6E5 is too low........ It takes -8v on the grid to close the eye as per the RCA tube manual.......

Terry, he is using a 6U5, that takes ~ -22 volts to close.

https://frank.pocnet.net/sheets/049/6/6U5.pdf

I don't quite understand that voltage chart.  The target grid is pin 3 and you show nothing measured there.
John KK4ZLF
Lexington, KY
"illegitimis non carborundum"
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Messages In This Thread
Zenith 7-S-240 Eye tube question - by Eric - 05-30-2016, 04:37 PM
RE: Zenith 7-S-240 Eye tube question - by morzh - 05-30-2016, 09:34 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 05-31-2016, 02:00 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-01-2016, 02:41 PM
RE: Zenith 7-S-240 Eye tube question - by Eliot Ness - 06-01-2016, 08:48 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-02-2016, 09:04 AM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-02-2016, 05:20 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-03-2016, 07:02 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-04-2016, 02:21 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-05-2016, 12:13 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-05-2016, 04:14 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-06-2016, 04:55 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-07-2016, 05:28 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-07-2016, 05:29 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-07-2016, 08:10 PM
RE: Zenith 7-S-240 Eye tube question - by Eric - 06-08-2016, 05:02 PM



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