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

More Model 60 Coil Questions
#1

Hey, All,

'Been working on a (late) model 60, and I have all caps and all bad resistors replaced.

When I first got it running, it worked so-so, and after about 45 min the osc. quit completely, and found I had the classic coil problems that I've been reading about in this forum. Great info, BTW.

Anyway, yet more questions:

-- One member here thought that anything from 34 to 38 awg would work for rewinding the primaries on the osc and antenna coils. Ron, I know you have said that 38 is what you use. Any known problems caused by using 34? I would think that the issue is mainly one of getting enough of the turns onto the right place on the core, but I'm weak in my inductance theory. 34 is way easier to get in the time I have, and would like to do the rewinds either tonight or this weekend.

-- The secondary on the 2nd I-F coil (Item 25) measures 45 ohms instead of the 85 ohms shown on the schematic. Problem?

-- When the radio was working after the rebuild, adjusting the I-F trimmers too far one way would cause motor-boating to occur. Is this normal, or due to the above coil issues?

Thanks!

Scottie


Messages In This Thread
More Model 60 Coil Questions - by Guest - 03-10-2010, 06:47 PM
Re: More Model 60 Coil Questions - by 7estatdef - 03-11-2010, 07:13 PM
Re: More Model 60 Coil Questions - by Guest - 03-11-2010, 07:34 PM
Re: More Model 60 Coil Questions - by 7estatdef - 03-12-2010, 07:07 PM
Re: More Model 60 Coil Questions - by exray - 03-12-2010, 10:04 PM
Re: More Model 60 Coil Questions - by 7estatdef - 03-13-2010, 07:50 PM
Status update and background - by Guest - 03-14-2010, 12:40 PM
Re: More Model 60 Coil Questions - by exray - 03-14-2010, 10:06 PM
Re: More Model 60 Coil Questions - by Guest - 03-15-2010, 01:10 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM
Philco 610B oscillator wiring
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM
HiFi (Chifi) tube amp build - but my own design.
Tim; I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM

[-]
Who's Online
There are currently 2077 online users. [Complete List]
» 4 Member(s) | 2073 Guest(s)
AvatarAvatarAvatarAvatar

>