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

Dragging out an old nemisis-Philco 66 cathedral-SUCCESS
#46

Yes, C13 ungrounded pin to the coil side of C14.
I'm not sure how to specify the part of the band switch, but it is the pin on the bandswitch where the lug on the coil 16 has a directly wired connection, so I'm getting zero ohms from Grid One of the 6A7 (pin five according to my tube manual) to that pin on the bandswitch. I was thinking that would show me resistance across one of the windings on coil 16 because that is what the schematic seemed to show because I'm seeing a connection from the start of the first winding of 16 to tuning gang trimmer C11 and grid 1 of the 6A7 (pin 5). So I was attempting to get the beginning of the first winding to the end of it. The end of the first winding seems to be the beginning of the second (or the same pin, so I measured from that pin on the bandswitch to the ungrounded side of C13, then from the ungrounded side of C13 to the coil side of C14.
What I'm trying to do is get a sense of the health of coil 16 by measuring the resistances across its three windings. Where should I be measuring? I can, pull the coil, I suppose.

Charlie in San Antonio


Messages In This Thread
RE: Dragging out an old nemisis-Philco 66 cathedral - by ccomer1955 - 08-21-2014, 06:38 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM
Part numbers to model cross
Jim, We have this index put together by Dale Cook but I don't think that is quite what you are looking for. The Parts...klondike98 — 09:37 PM
Philco Model 38-7: what caps & resistors do fail typically?
Yep the dim bulb test is OK but I'd definitely replace all those electrolytics before I did it. Since those #47 conden...klondike98 — 09:18 PM
Philco 42-345 Restoration/Repair
The resistor is a 2.2 Meg, it was the last one I hadn't replaced. The broadcast is coming in after replacing it.osanders0311 — 09:09 PM

[-]
Who's Online
There are currently 1126 online users. [Complete List]
» 1 Member(s) | 1125 Guest(s)
Avatar

>