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Late Philco cathedral

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Late Philco cathedral Empty Late Philco cathedral

Post by Bill Cahill on Wed Jun 20, 2012 10:26 am

I got this mess a short time ago. It's a model 37-84.
It's a cheapie 4 tuber cathedral..
The last owner re finnished the case, but, used no color, and, some of the old finnish is still there. I'll just redo it. He had done an expert job reconning the speaker.
He had started removing cap blocks, and, was installing terminal strips. I didn't like that.
He was also using disc caps., and, I didn't like that either.
So, I started checking on schematic, and, wirring parts back up. Luckily, about 20 years ago along with a bunch of stuff, I got a coffee can full of pieces of new old stock wires of different lenghths from the 30's that one of the companies had thrown away.
Some of the wires were exactly like the wirring under the Philco chassis, so, that wirring will look original...

I will be re stuffing the cap blocks.
I gutted the electrolytic, and, was going to install new caps in it. Unfortunately for me, the inside terminals were aluminum, and, I couldn't drill holdes to get to bottom of terminals due to construction. Can was originally meant to be held on by a long bakelite threaded extension.
So, I cleanned it as much as possible, and, re mounted pieces of can back into cardboard sleave, and, mounting bracket, making sure terminals underneath ended in same position as it needed to be.
I then, started reconnecting wires, and, installing new electrolytics underneath.
I will be rebuilding bakelite blocks.
Before I go too far, I'd better make sure output transformer, and, field coil are o.k.
I will be replacing the brightly colored plastic wires he ran outside of chassis for spkr. with vintage colored cloth wires..
This set uses a 5Y4 rectifier, 2 6J7 tubes, and, a 6F6 audio output.

My next problem will be repairing wirring coming out of power transformer. It's rotted, bare, and, he tried putting blue plastic sleeves on them. Besides being difficult to figure which wire is which, the sleeves aren't going all the way into transformer holes, so, not all wires are safe. In fact, at least one is dangerously close to shorting to chassis.
It just won't do..

Well, this is going to be one of those long projects. I can plainly see that....
Bill Cahill

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Post by Ben Delk on Wed Jun 20, 2012 4:14 pm

You talking about re-stuff as in re-rolling the insides of old cap or adding new type caps to the inside of the can?
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Post by Motorola man on Wed Jun 20, 2012 6:51 pm

Restuffing a cap means removing the inner part of a capacitor and putting a new capacitor inside of the body of the old. It's certainly not necessary to do this, and many technician don't take the time to do it, but it does help to preserve the original appearance of the radio. The Bakelite blocks that Bill mentioned (and are also in your Philco console) are small black blocks with multiple terminals. They have one or more small capacitors and sometimes resistors inside of them and are filled with a tar like goo. The blocks can be heated up a bit, the guts will come out & then new parts can be fitted inside of the block.
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Post by Ben Delk on Wed Jun 20, 2012 8:44 pm

Hey Dave....sorry I did not explain that well. I understand the re-stuff can and bakelite caps with new type caps. I just thought Bill might be actually trying to make the wrapped gauge, boax, goo direction. I hear rebuilder purist talk about this and know how well versed Bill is in this business I just had to ask. Thanks for the info anyway.

Blessing,
Ben
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Post by Bill Cahill on Wed Jun 20, 2012 10:52 pm

Simply put, I remove the tar, the old capacitors, and, clean it some. Then, add a new set of caps inside, solder, and, trim leads. I don't bother to put the tar back in because tar tends to absorb moisture.
I see no problem with just leaving new caps installed in side. They cannot be seen casually.
I belive in neatness, and, original look, plus, crittical wirring can be messed up any other way.
I'm no purist, but, believe in a proper job.....
I am the same way on all my restorations.
You should look at my other restorations.
Bill Cahill

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Post by Bill Cahill on Thu Jun 21, 2012 4:17 am

I had a sickenning feeling this was going to happen. Aud. out. socket was dammaged, and, one pin was wiggling alot.
None the less, tried to remove a wire from pin 3 he had cut.Plate.
Pin finnished breaking off socket.
After calming down from my frustration, I removed old socket, located a new wafer socket, mounted it, and, wired it up.
Now, back to rest of the repairs.
Bill Cahill

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Post by Ben Delk on Thu Jun 21, 2012 7:48 am

Ouch!
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Post by Bill Cahill on Thu Jun 21, 2012 9:11 am

Ben said: "Ouch!".
You're telling me????
Well, it's wired up. I found out three more wires from transformer are also rotted, so, I cleanned off worst of rot in filament wires. I will add more sleeving for rest. I managed to shove one of his sleeves further into transformer, eliminating another short.
I'll be checking further..

Still figuring out original wirring. He had alot of wires hanging out in chassis. He apparently never got a chance to finnish the job...
I'm glad I was able to replace a couple more rotted wires. The old wires I put in are like new...
It's time to cheak aud. output transformer, and, field coil.
Haven't rebuilt any of the cap blocks, yet....
Bill Cahill Smile

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Post by Ben Delk on Thu Jun 21, 2012 9:47 am

Any rust on the chassis? You ever tried pulling the tranfm apart to replace the wires?
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Post by Bill Cahill on Thu Jun 21, 2012 9:55 am

No rust on chassis. I'm going to try just patching this one, first.
It's not a great radio.
I'll do things like that when I need to if I'm in love with set. I'm definately NOT in love with this one.
I may be surprised... We'll see......
Bill Cahill

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Post by Ben Delk on Thu Jun 21, 2012 10:11 am

Is this something you plan to sell?
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Post by Bill Cahill on Thu Jun 21, 2012 10:13 am

Not as far as I know....
Why? You want it??
Bill Cahill

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Post by Ben Delk on Thu Jun 21, 2012 10:30 am

No but I do know someone looking for a catheral. Send me some pix when you get it together and run it past him. I haven't reached the point where I'm ready to start selling, I'm having too much fun collecting the ones I like. I've setup an A.M. broadcaster to my workbench laptop so I can stream big band radio channel's thru the whole house. I do have a few bakelites I'm considering selling but like most hobbies I have more in them then I can get out of them. But then isn't that the way all hobbies are?
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Post by Bill Cahill on Thu Jun 21, 2012 5:34 pm

Sorry. As I said, I'm not looking to sell it.
I was just wondering why you wanted to know.
Bill Cahill

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Post by Ben Delk on Thu Jun 21, 2012 5:36 pm

No problem , good luck with it.
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Post by Bill Cahill on Sun Jun 24, 2012 12:47 am

Some good news. I found the missing screws for original cap blocks. He had trhrown them into a bot of wood screws.
I found the last missing block.

I replaced broken audio output socket, put some orignal type wirring back in, and, started replacing speaker wirring he installed.
I will be rebuilding cap blocks, and, putting new cloth power cord on he had bought for it...
He had some old cloth wires loose in a containner, and, I'm using them for speaker..
Speaker is in good shape.
I think this radio will play again.
I have a long way to go, though.
Bill Cahill

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Post by Ben Delk on Sun Jun 24, 2012 10:15 am

Is the cabinet finish good?
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Post by Bill Cahill on Sun Jun 24, 2012 7:32 pm

No. As I said, he had done a very poor job of refinnishing it. I'll have to do it over again.
Bill Cahill

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Post by Ben Delk on Mon Jun 25, 2012 7:14 pm

How's it going with the 37-84?
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Post by Bill Cahill on Tue Jun 26, 2012 5:36 am

I was under the weather yesterday, and, today is my shopping trip day, but, I'm making good progress. I located the original discarded screws that hold the capacitor blocks in. I've re wired wires that go to speaker. Found old cloth wires for that purpose.
Will be putting back in old line block after rebuilding it. I'll then fix transformer wires, rebuild other blocks, wire in speaker, install tubes, and, try it.
Hope it plays. I'll try to get pics soon. I know they are important.
Bill Cahill

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Post by Ben Delk on Tue Jun 26, 2012 7:49 am

Sounds like a solid plan. Good luck.
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