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

Model 60 volume and no frequency
#25

Try aligning it to the DC voltage on the AVC line. Using my cheap Radio Shack voltmeter I ended up with better results than using my oscilloscope at the speaker when I aligned my 60. That was my first attempt at using the AVC voltage for alignment, and it worked really well. Just be sure you are in DC mode, and be aware that the voltage should be negative. Adjust so that the voltage is as big a negative number as possible.

If you think you are way off, start by feeding audio on a 460 kHz carrier into the cap electrode of the 78 tube and adjust the trimmers for the second IF transformer. You should be able to get a reasonable amount of tone out. If that works, move the signal input to the cap electrode of the 6A7 and adjust the trimmers of the 1st IF transformer. From that point on, you can go back to Ron Ramirez's procedure.

Roger


Messages In This Thread
Model 60 volume and no frequency - by winston763 - 04-05-2014, 02:42 AM
RE: Model 60 volume and no frequency - by TV MAN - 04-08-2014, 09:58 AM
RE: Model 60 volume and no frequency - by TV MAN - 04-09-2014, 12:25 PM
RE: Model 60 volume and no frequency - by TV MAN - 05-03-2014, 09:51 AM
RE: Model 60 volume and no frequency - by Roger Cole - 05-05-2014, 12:13 AM
RE: Model 60 volume and no frequency - by TV MAN - 05-09-2014, 09:00 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Philco 46-480 Electronic Restoration
Very nice job. A real contrast between how easy the main chassis is to work on, vs how tightly the RF chassis is packed...MrFixr55 — 09:31 AM
Philco 46-480 Electronic Restoration
After sleeping on it, I believe the issue is that I may have forgotten to install a ground connection between the RF cha...jrblasde — 09:21 AM
Refinishing Ideas
Hi Poulsbobl, I think that you could get away with it.  In the Philco Library, there is a parts listand specs for sp...MrFixr55 — 11:54 PM
Philco 46-480 Electronic Restoration
The sleeving for the transformer arrived early, so I went ahead and finished reassembling. The chassis looks far better ...jrblasde — 10:15 PM
Philco 610B oscillator wiring
I don't know what you are referring to when you say "tube cathode ground". Ground is a connection to the chass...RodB — 05:56 PM

[-]
Who's Online
There are currently 700 online users. [Complete List]
» 1 Member(s) | 699 Guest(s)
Avatar

>