Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Philco 37-611 restoration
#1

I picked this radio up a few years and did a quick recap.  Just enough to get it playing.  My recent experience working on a similar 37-640 got me thinking it was time to do a proper job.  That includes replacing the rotting rubber mounts now that I know how to get the RF chassis out Icon_smile

I'm also going to do something about that terrible refinishing job and speaker grille Icon_thumbdown
[Image: https://farm6.staticflickr.com/5058/5399...e3d3_z.jpg]

[Image: https://farm6.staticflickr.com/5297/5400...faed_z.jpg]

[Image: https://farm6.staticflickr.com/5131/5399...70b2_z.jpg]
#2

Here's a look inside. It's an AC/DC set with series wired tube filaments and two bands - SW and broadcast.

[Image: https://farm6.staticflickr.com/5093/5400...2312_z.jpg]

[Image: https://farm6.staticflickr.com/5215/5400...19a3_z.jpg]

Some repairs had been made in the past.
[Image: https://farm6.staticflickr.com/5218/5399...f264_z.jpg]
#3

Here's my quick recap I did back in 2011. It did work, but I wasn't able to get at all the paper caps under the bandswitch and didn't check the resistors.

[Image: https://farm5.staticflickr.com/4087/5409...6a19_z.jpg]

I also had some trouble with than open power switch. I ended up taking it apart and cleaning the contacts. That did the trick Icon_smile
[Image: https://farm5.staticflickr.com/4102/5415...97de_z.jpg]

[Image: https://farm5.staticflickr.com/4112/5415...88c1_z.jpg]

[Image: https://farm6.staticflickr.com/5260/5414...e91b_z.jpg]
#4

You are lucky that it's a 37-611 rather than a 37-116. It has a few more wires in the RF deck!
Nice work as always.

Terry
#5

True, but a 37-116 has an RF stage this radio lacks ;) Definitely notice less gain than the 37-640.
#6

I pulled the RF chassis out for servicing first.
[Image: https://farm1.staticflickr.com/481/20448...6abc_c.jpg]

Finally, I can get at that paper cap!
[Image: https://farm1.staticflickr.com/302/20286...2b17_c.jpg]

It's an oddball dual cap with a metcal collar being the common terminal.
[Image: https://farm1.staticflickr.com/418/20474...134b_c.jpg]

I also restuffed the electrolytic and repacked the vernier drive bearings.

[Image: https://farm1.staticflickr.com/291/20474...10fb_c.jpg]

[Image: https://farm1.staticflickr.com/535/20474...fbd6_c.jpg]

[Image: https://farm6.staticflickr.com/5667/2066...21af_c.jpg]

[Image: https://farm6.staticflickr.com/5641/2069...691a_c.jpg]

Now on to the rest of the chassis Icon_smile
[Image: https://farm1.staticflickr.com/640/21007...16b2_c.jpg]
#7

Next up, I did a bit of chassis cleaning. The filter chokes had leaked out tar or wax which did a great job protecting the metal Icon_smile

[Image: https://farm6.staticflickr.com/5643/2070...caec_c.jpg]

[Image: https://farm6.staticflickr.com/5676/2050...ed6c_c.jpg]

Then, I finished rebuilding the rest of the caps and put it all back together. It works, but it doesn't have very good gain and there's a lot of background noise. Hoping an alignment will help.

[Image: https://farm6.staticflickr.com/5641/2091...73bb_c.jpg]

[Image: https://farm6.staticflickr.com/5634/2029...4299_c.jpg]

[Image: https://farm6.staticflickr.com/5792/2092...3dec_c.jpg]

[Image: https://farm1.staticflickr.com/695/21102...5c3d_c.jpg]




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM

[-]
Who's Online
There are currently 2328 online users. [Complete List]
» 1 Member(s) | 2327 Guest(s)
Avatar

>