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

1936? model 84 resistor
#31

Hi Jim,
I'm pretty sure it's grounded internally but just to be sure you can check it with an ohm meter. Usually what happens is without a gnd connect to the set the volume control doesn't have much of an effect at all. Plays loud all the time. Did you try reversing the coil winding?
Terry
#32

Haven't gotten to the coil yet. Still have to align the set. Am
going to get the "Ron Special" ball-point pen alignment tool
made this morning. The coil should be right on--counted turns
& made very sure to wind in the correct direction. Will see
what alignment will do for the old girl first.
Any idea other than humidity---what causes the Litz wire
to corrode on the coil windings? The set was obviously not
out in a barn--chassis is in very good shape for the age of
the unit. Thanks much for your help. Jim
#33

Well 1st off it's not Litz wire. It's just plain old 38G cotton covered stuff. There an interaction between that little clear strip and the copper that causes it to rot. Litz wire is made up from using several strands from very fine wire like 7-41 would be 7 strands of 41G wire.
Terry
ps Your very welcome enjoy doing it. It's kinda like fixing a radio with out doing the work! If it give you any trouble you know where to find me.
#34

It reminded me of Litz wire---came off in small pieces. I suppose Litz would have
come off the coil "dead"---this wire did have some spring to it yet. Thanks again.
Jim




Users browsing this thread: 5 Guest(s)
[-]
Recent Posts
An attempt to remove the Field Coil from a G speaker
Gary I in fact did, on a 38-14, I think, where I had a speaker with the dead coil. Well...it kinda worked. Kinda, be...morzh — 10:38 PM
An attempt to remove the Field Coil from a G speaker
Mike, what ever happened to that plan you had to try using a rare earth magnet to magnetize the pole? This looks like a...GarySP — 10:25 PM
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

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

>