Giid leak voltage on Sears 101.557-1 chassis - Printable Version
+- The PHILCO Phorum (https://philcoradio.com/phorum)
+-- Forum: Various and Sundry Categories (https://philcoradio.com/phorum/forumdisplay.php?fid=37)
+--- Forum: Other Radios (Non-Philco) (https://philcoradio.com/phorum/forumdisplay.php?fid=12)
+--- Thread: Giid leak voltage on Sears 101.557-1 chassis (/showthread.php?tid=15775)
+- The PHILCO Phorum (https://philcoradio.com/phorum)
+-- Forum: Various and Sundry Categories (https://philcoradio.com/phorum/forumdisplay.php?fid=37)
+--- Forum: Other Radios (Non-Philco) (https://philcoradio.com/phorum/forumdisplay.php?fid=12)
+--- Thread: Giid leak voltage on Sears 101.557-1 chassis (/showthread.php?tid=15775)
Pages:
1
2
RE: Giid leak voltage on Sears 101.557-1 chassis - leftwing25 - 12-01-2016
(12-01-2016, 07:05 PM)Radioroslyn Wrote:Yeh, probably a good thing I don't have any of those or I might be tempted to try that.(12-01-2016, 06:45 PM)leftwing25 Wrote:(11-30-2016, 09:46 PM)Radioroslyn Wrote: Methinks you mean C-8, possible maybe may alter the cathode voltage a bit. also check R-2.
Yeah, kinda thought that might be the case. Yep, c-8. Resistors don't use mfds. Also noticed B+ is about 14 volts low at the rectifier cathode, but plate voltages only about 5 volts low, i.e., 140 reading 135-138. Possible problem? Unfortunately don't have any 25z6's to replace it with. Anyway, will replace c-8 and see what happens. Thanks, Terry. Ed
Doubt 5v is going to make much of a difference. If you like excitement you tie a couple of 1N4007 across your 25Z6. Did I say that??? [Image: http://philcoradio.com/phorum/images/smilies/icon_eek.gif] That will get ur 140 up the abt 160.
RE: Giid leak voltage on Sears 101.557-1 chassis - leftwing25 - 12-01-2016
Cathode is at 5.5 vdc so I guess I can bag that theory.