Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
This has a TH-4 chassis.
So far the speaker is shot. The sad thing is is the voice coil and the magnet - the rust got in, ate away the coil and the paper bobbin, freezing the cone (doesn't even matter). Sad because of both the field and output xfmr are good.
So....Kirk said he'd be looking for a 4" speaker for this one. It is possible that other than alignment this one wouldn't need anything.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
Question:
Would the speaker from a 40-125 (it is a field coil one with 500 Ohm coil, and also driven by 35A5 so the output transformer should be the same; but do not know the mechanical challenges that might arise / size, mounting holes etc) fit in this?
Someone is selling a pair of these radios in my corner of the woods; for $50, I might try to knock it down a bit.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 2,572
Threads: 337
Joined: Jun 2013
City: lawrenceville nj
mike
a 40-120, 124, 125, 501or 502 will work
if you can`t get it cheap I have a 40-125 in storage
sam
Some day, and that day may never come, I will call upon you to do a service for me. But until that day, accept this justice as a gift
mafiamen2
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
Thanks Sam.
It's up to Kirk, if he wants to spend money on it and how much. This radio will need a new speaker; short of re-coning there isn't much that can be done and re-coning price-wise could be more expensive than buying another speaker, even if with radio attached to it 
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 2,572
Threads: 337
Joined: Jun 2013
City: lawrenceville nj
mike sent pm
Some day, and that day may never come, I will call upon you to do a service for me. But until that day, accept this justice as a gift
mafiamen2
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
Got it, replied.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
So...?yestersay when I attempted the power up some magic smlme escaped from some place. I suspect it was a coil. I didn't bother to find out what it is, some RF xfmr though not sure which, maybe oscillator.
I checked continuity, still good.
So I replaced more wires, found some errors.
Today checked the tubes again, some croaked but I have 40-125 now that is a donor of...everything.
So I powered up, and it works. There is a motorboating sone place in the middle of the band, I think I will attempt alignment and see if it improves. Tomorrow.
PS.
The speaker is exact replacement. Seems like all of them used the same one. And the chassis' are not that different from each other.
PPS. This radio is the ROYAL PITA. I HATE IT.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
(This post was last modified: 01-05-2017, 11:47 PM by morzh.)
Posts: 2,572
Threads: 337
Joined: Jun 2013
City: lawrenceville nj
Mike
If it is as easy kirk would do it
Heck I see it and I don't want to do it 
Some day, and that day may never come, I will call upon you to do a service for me. But until that day, accept this justice as a gift
mafiamen2
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
You need to come over and pick up that coffin with the asbestos sheet inside 
PS. Kirk does it anyway. First. Before giving it to me. That is one of the problems with this radio
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
(This post was last modified: 01-06-2017, 01:30 PM by morzh.)
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
Forgot to add: need to open the volume regulator to fix the switch.
PS. The hope the volume pot could be taken from 40-125 did not materialize: the same exact problem.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
Opened the pot, cleaned both the resistor and the switch, closed and soldered over the riveted lugs of the switch: they were a bit loose and this resulted in contact resistance increasing to 300 ohm which could result in losses.
While doing this, had to replace more wiring.
Now it is working OK.
THE END.
PS. Need to really clean up the place: lots of crumbled insulation and even some pieces of asbestos.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 2,572
Threads: 337
Joined: Jun 2013
City: lawrenceville nj
good job mike 
just throw asbestos and wire bits in kirks radio after all it his right 
sam
Some day, and that day may never come, I will call upon you to do a service for me. But until that day, accept this justice as a gift
mafiamen2
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
Some of it is yours
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 2,572
Threads: 337
Joined: Jun 2013
City: lawrenceville nj
I like to share so give him mine 
Some day, and that day may never come, I will call upon you to do a service for me. But until that day, accept this justice as a gift
mafiamen2
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
OK. One asbestos sheet goes to Kirk.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Users browsing this thread: 3 Guest(s)
|
|
Recent Posts
|
|
Shadow Meter Bulb
|
| Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM |
|
Philco 41-608 changer coupler
|
| 3D-printing...short of machining, of course.
Or molding.morzh — 05:20 PM |
|
Philco 41-608 changer coupler
|
| Thanks, Morzh.
That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM |
|
12' Philco
|
| If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel.
Kareem would have an e...morzh — 01:48 PM |
|
12' Philco
|
| And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM |
|
Hickok AC51 tube tester
|
| I think they have only shown the secondaries of the transformer.
Two of them feed the rectifiers' filaments.morzh — 12:58 PM |
|
IF can wire size and Rubber mounts?
|
| Arran
If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM |
|
12' Philco
|
| Rod,
Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently.
H...morzh — 12:54 PM |
|
Hickok AC51 tube tester
|
| Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM |
|
IF can wire size and Rubber mounts?
|
| Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM |
|
Who's Online
|
There are currently 5760 online users. [Complete List]
» 1 Member(s) | 5759 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
