37-60 Started repair again
Posts: 671
Threads: 8
Joined: Apr 2018
City: S. Dartmouth
State, Province, Country: MA
Red is B+, Blue is plate of output tube.
Black to one end of the hum-buck winding and the yellow to the voice coil.
RESTORE the original connection of the hum-buck and the voice coil to complete the voice circuit in the speaker.
If there is a background hum, try swapping only the yellow/black on the voice-coil/hum-buck. Do not alter the connection of hum-buck to voice coil.
If the hum goes away or gets less, keep, if not swap back.
GL
Chas
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
Messages In This Thread
RE: 37-60 Started repair again - by Chas - 05-28-2023, 06:25 PM
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
Bakelite crack repair - what is best epoxy?
|
| Thanks everyone. I appreciate you sharing your experience and looks like I'll work with the 24 hr two part clear epoxy....de371 — 10:25 PM |
|
Jackson 665 j2 schematic request
|
| Without a schematic its going to be hard tracing the wire wound spool resistors.daveone23 — 05:21 PM |
|
Jackson 665 j2 schematic request
|
| Looking for a schematic for the 665 j2 multimeter.daveone23 — 04:42 PM |
|
Looking for place to donate unique Philco Philco J-1930 Prototype
|
| >>I'll write to the Henry Ford.
I heard, his secretary answers his mail, not he himself.morzh — 12:15 PM |
|
Philco 48-200 alignment questions
|
| Just checked the power cord and I did in fact wire it so the hot side (small prong) goes to the switch.transitony — 11:52 AM |
|
Looking for place to donate unique Philco Philco J-1930 Prototype
|
| Thanks for the suggestions. I'll write to the Henry Ford. That would certainly make sense since by the time this prod...jeibner — 11:49 AM |
|
Looking for place to donate unique Philco Philco J-1930 Prototype
|
| For what it's worth, the Henry Ford Museum and Greenfield Village in Dearborn, Michigan may be an option.
The obvious ...GarySP — 11:39 AM |
|
Help with Readrite 410 tube tester
|
| Mike and I just had a short discussion yesterday about this very subject. So often it's the connections. Ya gotta have t...RodB — 10:08 AM |
|
Looking for place to donate unique Philco Philco J-1930 Prototype
|
| We have a regional museum here in the Twin Cities called The Pavek Museum. They have an extensive collection of communic...RodB — 09:30 AM |
|
Philco 89B code 123 newbie
|
| I did some nosing around and found that the original caps were 4 3/4" long x 1 5/16" in dia. Guess what 1"...Radioroslyn — 09:28 AM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
