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

rewinding osc coil
#1

Looks like my osc coil in my Philco 41-250 has the green corrosion.

Any hints on rewinding it? Guage of wire, etc?

Thanks
#2

If enough of the coil has survived the corrosion, then
use a pin or needle to count the turns. Place the point
of the needle on the former, and using very gentle pressure,
slide it along the coil, counting the "bumps". Trying to unwind
the coil and count that way is doomed to fail. After you have
the number of turns, make a careful drawing of the coil,
including the number of turns, direction of winding, length
of the coils, and distances between the sections, if any.
Then carefully unwind the wire, and try to compute a diameter
of the wire. The exact diameter is not terribly important. Anyway,
from the length of the coil, and the number of turns, you
can get a diameter for the wire. Try to get something reasonably
close in diameter, and rewind.

Good luck




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 38-7 Speaker
I have let this one sit because of other duties. Now I am back, and I have a couple of questions. I hooked up a Hammond ...tludka — 05:34 PM
Philco 42-390, code 121 speaker
>>A closer examination of the very small print schematic indicates that the speaker is a PM type. This shows a ...morzh — 05:18 PM
Philco 60 Squealing
Litz is typically tinned by simply rubbing it with the soldering iron tip while immersed in solder (and a bit of rosin f...morzh — 05:14 PM
Philco 6K7
The suppressor grid (if by G3 you mean the S) is usually at the Cathode potential, which in this caes is GND. I am not ...morzh — 05:10 PM
Philco 16B Parts
Thanks for the reply. Unfortunately the radio was removed before bidding was over so I didn't get a chance to bid.dconant — 04:10 PM
Philco 16B Parts
Hi Dan, Mike is correct, there's a lot of painted stuff on the chassis but it looks pretty good. The sm is all there,sp...Radioroslyn — 03:50 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A...captainclock1988 — 03:43 PM
Philco 42-390, code 121 speaker
Using a 5W  1.5k  ceramic resistor in place of the field coil and using a 4 ohm PM speaker, I was able to bring the radi...Stevelog — 02:57 PM
Philco 60 Squealing
I have taken out the 2nd IF and found a problem or not. I believe the coils are litz wire. There is a very small strand ...dconant — 02:13 PM
Philco 6K7
I am restoring a Philco 37-60. The am reception is very good, but the shortwave is very weak. Run 6 Philco removes the g...bobbyd1200 — 01:35 PM

[-]
Who's Online
There are currently 4672 online users. [Complete List]
» 2 Member(s) | 4670 Guest(s)
AvatarAvatar

>