Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

38-12 Oscillator Replacement
#12

You have me very curious.  I connected pin 4 of the OS coil to the grid of 6A7  and B+ to pin 5.. Are you indicating reversal may help?i.e B+ to pin 4 and pin 5 to the 6A7 Grid?

Specification Sheet:

[Image: https://www.tubesandmore.com/sites/defau...sheet2.png]


Messages In This Thread
38-12 Oscillator Replacement - by Radioguy52 - 04-28-2022, 12:17 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 04-28-2022, 03:41 PM
RE: 38-12 Oscillator Replacement - by Radioroslyn - 04-28-2022, 05:40 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 04-28-2022, 06:11 PM
RE: 38-12 Oscillator Replacement - by Radioroslyn - 04-28-2022, 06:48 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 04-28-2022, 10:19 PM
RE: 38-12 Oscillator Replacement - by Chas - 04-28-2022, 11:14 PM
RE: 38-12 Oscillator Replacement - by Radioroslyn - 04-29-2022, 10:53 AM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 04-29-2022, 11:49 AM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 04-29-2022, 11:52 AM
RE: 38-12 Oscillator Replacement - by Radioroslyn - 04-29-2022, 03:54 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 04-29-2022, 04:46 PM
RE: 38-12 Oscillator Replacement - by Radioroslyn - 04-29-2022, 05:17 PM
RE: 38-12 Oscillator Replacement - by Radioroslyn - 04-29-2022, 05:28 PM
RE: 38-12 Oscillator Replacement - by BrendaAnnD - 04-30-2022, 03:11 AM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 05-01-2022, 07:21 PM
RE: 38-12 Oscillator Replacement - by Mondial - 05-01-2022, 09:29 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 05-01-2022, 11:02 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 05-10-2022, 09:09 AM
RE: 38-12 Oscillator Replacement - by Chas - 05-10-2022, 10:42 AM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 05-10-2022, 11:14 AM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 05-10-2022, 12:07 PM
RE: 38-12 Oscillator Replacement - by David - 05-10-2022, 12:59 PM
RE: 38-12 Oscillator Replacement - by Radioguy52 - 05-10-2022, 03:38 PM



Users browsing this thread:
[-]
Recent Posts
Philco 46-480 Electronic Restoration
The shield is on the 6H6. It was, in fact, a missing jumper to connect the main chassis ground to the RF chassis grou...jrblasde — 10:58 PM
Zenith H725
When dealing with noise on power lines, time to get my Jackery 240 out. Talk about clean can hold a portable am radio ne...David — 08:52 PM
Zenith H725
Arran - I bet you're right probably vinyl, there was no rubber smell when desoldering it, which you often get with the o...EdHolland — 08:23 PM
Zenith H725
Ed; It was very likely vinyl covered wire given the vintage of the set, there was some rubber/gutta percha wire used ...Arran — 06:34 PM
Zenith H725
I think the problem is traced - to noise on the AC line. It sounded so local, that it seemed certain it was generated wi...EdHolland — 05:51 PM
The list of my radio & TV collection!
A little bit of positivity in our feed... My new video... Test - the Philco 16B vs Philco 37-116 de Luxe / Test - the ...RadioSvit — 12:14 PM
Refinishing Ideas
Thanks. I will look into. Billpoulsbobill — 11:23 AM
My Philco 37-116 Restore
Why do the flood lights have 2 wires running to the shell of each light when the inner conductor only has one to each? ...dconant — 10:54 AM
Philco 46-480 Electronic Restoration
OOPS!! if there is a "flag" running up the side of the tube that touches the shield, then yes, a shield belon...MrFixr55 — 10:03 AM
Philco 46-480 Electronic Restoration
Thanks for pointing out that shield! I will try to find out where else it may belong. I simply installed it back where i...jrblasde — 10:02 AM

[-]
Who's Online
There are currently no members online.

>