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

Philco 77 hacked?
#21

Yes, field coil, I mean, sorry. I'm getting 3.4K on the Field coil connected to the output transformer and disconnected from it. The output transformer has four lugs on its bottom that connect to wires going to the speaker plug and two wires that go to a terminal strip on the frame for the cone. When I take the OT off of the pot metal housing behind the speaker cone and disconnected the wires from all points, I get about 175 ohms from two of the lugs on the output transformer and nothing on the other two, 3.4K on the wires that go to the field coil, and 0 ohms to .8 ohms on the wires that connect to the terminal strip.
From what you say, it sounds like I'm OK, then. After I read your post, I did some experimenting. I have a 1.01K FC Magnavox speaker and a Philco OT (part 32-7019) that I took off of my Philco 66 because I found the correct Philco speaker for the 66 on Ebay, and when I measured the FC and OT, I got similar measurements (not the same numbers, just similar results).


Messages In This Thread
Philco 77 hacked? - by ccomer1955 - 08-06-2014, 08:02 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-07-2014, 12:15 PM
RE: Philco 77 hacked? - by morzh - 08-07-2014, 01:15 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-07-2014, 03:29 PM
RE: Philco 77 hacked? - by morzh - 08-07-2014, 03:38 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-07-2014, 04:36 PM
RE: Philco 77 hacked? - by Ron Ramirez - 08-07-2014, 04:37 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-07-2014, 05:44 PM
RE: Philco 77 hacked? - by Ron Ramirez - 08-07-2014, 05:47 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-07-2014, 09:07 PM
RE: Philco 77 hacked? - by morzh - 08-07-2014, 10:54 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-07-2014, 11:42 PM
RE: Philco 77 hacked? - by Arran - 08-08-2014, 03:02 AM
RE: Philco 77 hacked? - by morzh - 08-08-2014, 09:30 AM
RE: Philco 77 hacked? - by ccomer1955 - 08-08-2014, 11:12 AM
RE: Philco 77 hacked? - by Paul Philco322 - 08-08-2014, 12:43 PM
RE: Philco 77 hacked? - by morzh - 08-08-2014, 12:56 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-08-2014, 09:52 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-12-2014, 03:07 PM
RE: Philco 77 hacked? - by morzh - 08-12-2014, 03:38 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-12-2014, 10:05 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-23-2014, 03:04 PM
RE: Philco 77 hacked? - by Ron Ramirez - 08-24-2014, 08:04 AM
RE: Philco 77 hacked? - by ccomer1955 - 08-24-2014, 10:35 AM
RE: Philco 77 hacked? - by ccomer1955 - 08-25-2014, 01:28 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-28-2014, 11:56 PM
RE: Philco 77 hacked? - by Ron Ramirez - 08-29-2014, 05:31 AM
RE: Philco 77 hacked? - by ccomer1955 - 08-29-2014, 12:31 PM
RE: Philco 77 hacked? - by Ron Ramirez - 08-29-2014, 05:39 PM
RE: Philco 77 hacked? - by ccomer1955 - 08-29-2014, 06:17 PM
RE: Philco 77 hacked? - by ccomer1955 - 09-01-2014, 11:54 AM
RE: Philco 77 hacked? - by ccomer1955 - 09-15-2014, 02:08 PM
RE: Philco 77 hacked? - by OZ4 - 09-16-2014, 01:41 PM
RE: Philco 77 hacked? - by ccomer1955 - 09-16-2014, 05:34 PM



Users browsing this thread: 6 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
Tim Would mounting he transformer vertically change the hum, if used without additional parts? Also, in these amps...morzh — 02:25 PM
Shadow Meter Bulb
Gary I doubt it would introduce any noise. We use similar lamps for the panel indication, 12V AC lamps: they are LEDs...morzh — 02:15 PM
Shadow Meter Bulb
Not sure if anyone has tried this but there are 6.3 volt miniature lamps in bayonet and screw-in base options available ...GarySP — 11:31 AM
Shadow Meter Bulb
Any 6.3 volt pilot light will work. I would use the brightest one I could find in my workroom. Be sure the dial is clean...RodB — 10:45 AM
HiFi (Chifi) tube amp build - but my own design.
Tim, nice write up and thanks for sharing !! Sincerely Richardradiorich — 02:47 AM
HiFi (Chifi) tube amp build - but my own design.
Well, this was a real "Hum-Dinger" :lol: ! This will be kinda long, but hopefully it will help others having t...TV MAN — 01:55 AM
Shadow Meter Bulb
Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM

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

>