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

Philco 84 code 121 no sound
#44

(11-14-2016, 08:40 PM)Mike L Wrote:  I tried cleaning it with Deoxit, but no improvement. Looks like I need to find another. In the meantime cant I "bypass" it with a resistor to keep troubleshooting the remainder?

The vc doesn't do anything but vary the amount of signal from the ant to the primary of the ant coil. On some sets the vc is connected to the ant and cathode circuit which vary the cathode voltage this in turn effects the grid bias.

The short answer is yes you can and you don't need a resistor just a shorter ant or less signal from the sg when making adjustments. It's the same as using the set w/ the vc all the way up.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
Philco 84 code 121 no sound - by Mike L - 10-24-2016, 06:55 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-24-2016, 08:14 PM
RE: Philco 84 code 121 no sound - by Mike L - 10-25-2016, 07:34 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-25-2016, 08:07 PM
RE: Philco 84 code 121 no sound - by Mike L - 10-29-2016, 10:42 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-29-2016, 11:19 PM
RE: Philco 84 code 121 no sound - by Mike L - 10-29-2016, 11:50 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-30-2016, 12:27 AM
RE: Philco 84 code 121 no sound - by Mike L - 10-30-2016, 09:46 AM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-30-2016, 11:07 AM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-30-2016, 02:15 PM
RE: Philco 84 code 121 no sound - by Mike L - 10-30-2016, 04:11 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-30-2016, 04:55 PM
RE: Philco 84 code 121 no sound - by Mike L - 10-30-2016, 06:32 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-30-2016, 07:51 PM
RE: Philco 84 code 121 no sound - by Mike L - 10-31-2016, 07:31 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 10-31-2016, 08:23 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-01-2016, 07:46 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-01-2016, 10:15 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-02-2016, 07:25 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-02-2016, 08:34 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-02-2016, 09:07 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-02-2016, 09:17 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-03-2016, 08:08 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-03-2016, 08:34 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-09-2016, 02:22 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-09-2016, 11:44 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-10-2016, 12:05 AM
RE: Philco 84 code 121 no sound - by Mike L - 11-11-2016, 03:52 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-11-2016, 03:59 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-11-2016, 07:13 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-11-2016, 07:21 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-11-2016, 07:29 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-13-2016, 12:04 AM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-13-2016, 12:34 AM
RE: Philco 84 code 121 no sound - by klondike98 - 11-13-2016, 08:56 AM
RE: Philco 84 code 121 no sound - by Mike L - 11-13-2016, 09:45 AM
RE: Philco 84 code 121 no sound - by klondike98 - 11-13-2016, 09:48 AM
RE: Philco 84 code 121 no sound - by Mike L - 11-13-2016, 12:01 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-13-2016, 03:53 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-13-2016, 08:20 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-14-2016, 12:35 AM
RE: Philco 84 code 121 no sound - by Mike L - 11-14-2016, 08:40 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-14-2016, 09:47 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-14-2016, 10:25 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-15-2016, 01:04 AM
RE: Philco 84 code 121 no sound - by Mike L - 11-19-2016, 04:27 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-19-2016, 11:28 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-20-2016, 11:16 AM
RE: Philco 84 code 121 no sound - by KCMike - 11-20-2016, 11:36 AM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-20-2016, 11:44 AM
RE: Philco 84 code 121 no sound - by morzh - 11-20-2016, 11:49 AM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-20-2016, 11:57 AM
RE: Philco 84 code 121 no sound - by morzh - 11-20-2016, 12:01 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-20-2016, 12:12 PM
RE: Philco 84 code 121 no sound - by Mike L - 11-20-2016, 01:54 PM
RE: Philco 84 code 121 no sound - by Radioroslyn - 11-20-2016, 07:33 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco model #20
Hi Rick, The volume control on the Model 20 has 2 sections and does 2 seperate things: One part of the control, ...MrFixr55 — 10:30 PM
Philco model #20
Hello again fellows , well I powered up the set this evening after I had changed every cap and resistor in this set and ...onlyrick — 09:34 PM
Zenith H725
Yes - better it happened on the repair bench than returning to the owner. The other question is - do I also dissect a...EdHolland — 09:08 PM
Zenith H725
That's a bummer but get them now. Paul BPaul Philco322 — 08:27 PM
Zenith H725
I completed the insulation on the cabinet interior (Al foil and hi temp silicone rubber), and reglued the speaker gasket...EdHolland — 06:18 PM
HiFi (Chifi) tube amp build - but my own design.
Tim - Photos of 8 octal tube sockets. (Top and bottom) Send me a PM if you're interested.RodB — 04:11 PM
VTVM meter moves when my hand is next to it & not on
Haha! I hope so. It seemed rather lost and forgotten languishing in the frozen Northeast of England.EdHolland — 02:36 PM
VTVM meter moves when my hand is next to it & not on
Ed - it's in the Cayman's enjoying the good life.RodB — 02:14 PM
VTVM meter moves when my hand is next to it & not on
Static electricity - but the other chaps beat me to it again. I've seen this before with analogue meters. I've also ...EdHolland — 01:56 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM

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

>