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 20 voltage
#3

Odd indeed. I only know of one place in 20 (having restored two of them) that shows very different (I think much higher) voltage, and that is the plate detector's plate. The rest, even with today's DMMs are very much in line with what's written.

Uhm.....is your meter OK? And is the AC power OK?

I remember the bias resistor #25 section 1-2 (part of the big enameled one) being open in mine. But that's not likely what you are having.

And much lower plates on 71A - 1) as Terry said, could be 71As are conducting too much, 2) have you checked your D and B voltages, are they OK?

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.


Messages In This Thread
Philco 20 voltage - by Awon - 11-11-2016, 12:15 AM
RE: Philco 20 voltage - by Radioroslyn - 11-11-2016, 08:14 AM
RE: Philco 20 voltage - by morzh - 11-11-2016, 09:10 AM
RE: Philco 20 voltage - by Awon - 11-11-2016, 01:37 PM
RE: Philco 20 voltage - by klondike98 - 11-11-2016, 02:57 PM
RE: Philco 20 voltage - by Radioroslyn - 11-11-2016, 04:09 PM
RE: Philco 20 voltage - by morzh - 11-11-2016, 04:39 PM
RE: Philco 20 voltage - by Awon - 11-11-2016, 08:24 PM
RE: Philco 20 voltage - by Awon - 11-11-2016, 08:38 PM
RE: Philco 20 voltage - by Radioroslyn - 11-11-2016, 10:57 PM
RE: Philco 20 voltage - by NostalgiaRadioTime - 11-13-2016, 11:04 PM
RE: Philco 20 voltage - by Radioroslyn - 11-14-2016, 12:21 AM
RE: Philco 20 voltage - by NostalgiaRadioTime - 11-14-2016, 11:26 PM



Users browsing this thread: 7 Guest(s)
[-]
Recent Posts
RCA T62 is playing.....
Beautiful set.morzh — 09:07 PM
An attempt to remove the Field Coil from a G speaker
Well....here it is. The green stuff. Unfortunately, probably penetrates deep. I opened the top layer and saw that: ...morzh — 08:58 PM
Philco 91 Restore Code ??
:clap: :clap: :clap: :clap: Really nice workmanship!!! Top of the chassis looks great. Sorry about the long winded e...MrFixr55 — 08:09 PM
Philco 40-120C Restoration
Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM
RCA T62 is playing.....
Nice looking set great save. DavidDavid — 07:48 PM
Philco 89 indicator light.
Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM
An attempt to remove the Field Coil from a G speaker
MrFixr Yes, it is my plan to go with 45rpm spider if I go that far. No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM
Philco 40-120C Restoration
Change the tube. Check the tube's bias network. Are any other tubes experience the drop or just this?` Is resistor 23 OK...morzh — 07:09 PM
Philco 89 indicator light.
I forgot how the pointer is formed: could you show the way it is formed and how you tried to change it?morzh — 07:01 PM
An attempt to remove the Field Coil from a G speaker
Was that pole piece left handed ? Since the metal "spider" is toast, wonder if you can either get the "4...MrFixr55 — 06:54 PM

[-]
Who's Online
There are currently 8609 online users. [Complete List]
» 3 Member(s) | 8606 Guest(s)
AvatarAvatarAvatar

>