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

Philco 48-460 restoration
#1

I was recently asked to do a little work on this Philco 48-460 (AKA "Hippo") radio.  The owner said it worked fine and it just needed a new power cord.

[Image: https://c4.staticflickr.com/6/5798/30509...4c95_c.jpg]

[Image: https://c4.staticflickr.com/6/5792/30509...dc95_c.jpg]

[Image: https://c4.staticflickr.com/6/5505/31317...fe58_c.jpg]

Well, a quick look inside revealed that aside from a couple caps replaced long ago, it was all original. The newer caps are the Orange Mallory electrolytic and black beauty just below it in the photo. They are likely from the 50s or 60s. I informed the owner that for I couldn't just wired in a new cord. It really needed a recap and fuse to make it safe and reliable. He agreed so here we go. I've previously done a couple 46-420s and hope this goes smoothly.

[Image: https://c5.staticflickr.com/6/5478/30495...107d_c.jpg]028
#2

Here are a few more photos.
[Image: https://c8.staticflickr.com/6/5706/30509...21be_c.jpg]

That speaker should sound a lot better after a good cleaning!
[Image: https://c4.staticflickr.com/6/5668/31317...9ccf_c.jpg]

[Image: https://c2.staticflickr.com/6/5333/31317...f380_c.jpg]
#3

SO did you put a cord on and let her rip????????   [Image: http://philcoradio.com/phorum/images/smi...roblem.gif]

signed
Terry the troublemaker

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
#4

Nope, and I don't think I will. I'm thinking I'll tack in some new electrolytics before attempting a power up.
#5

This will be fun to watch! Thanks Bob.
#6

Looks like a nice example, dust, but pretty good shape. They play pretty good too.

Good luck with it.

Paul 

Tubetalk1
#7

I finally had a little time to work on this radio. The speaker cleaned up easily with a soft brush.
[Image: https://c2.staticflickr.com/1/372/320106...da7a_c.jpg]

The recapping is proceeding without any surprises. I measured a few of the old paper caps for the heck of it and all very very leaky at their rated voltage. Also found a few out of spec resistors like this discolored 220 that measured around 500.
[Image: https://c6.staticflickr.com/1/305/321293...4c61_c.jpg]
#8

I finished with the recap and installed a new line cord with 2amp slo blo fuse.
[Image: https://c1.staticflickr.com/1/285/322196...26aa_c.jpg]

I also pulled and tested all the tubes. They're all Philco branded and very likely the originals.
[Image: https://c1.staticflickr.com/1/522/322497...271d_c.jpg]

They tested fair to good except for the 50L6 output tube which has an intermittent short. It was replaced
[Image: https://c1.staticflickr.com/1/347/323700...a190_c.jpg]

That left reconnecting the loop antenna.
[Image: https://c1.staticflickr.com/1/272/315587...da00_c.jpg]

Eventually, I got that sorted out an powered it up. It works! Works a little too well actually. Great reception but even with the volume turned all the way down it's pretty loud. As I type this I realize I left a tube shield off the 7C6 converter. I doubt that's the source of the trouble though.
#9

OK, the problem seems to be the volume potentiometer. The lowest it goes is about 7K. Unfortunately, I don't have a replacement on hand so for now I did a quick polish and I'll call it done. If the owner want's to address it in the future I'll take another whack at it.
[Image: https://c1.staticflickr.com/1/344/322563...9073_c.jpg]
#10

It's looking great Bob!
I just got the white version of one of these - this thread will be a great help when I start it.

BTW - Not sure if you tried already but the knobs might clean up with a quick soak in Gojo and toothbrush scrub?
#11

Thanks! No, I haven't tried to clean the knobs.  This isn't my radio and I figure I'll leave something for the owner to do  Icon_e_wink   Good luck with yours!




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
As I remember it, the shock from that B+, about 250VDC, felt worse than the shocks I experienced from 220VAC.morzh — 09:14 AM
Hickok 288x
They worked for 85 years as .05's and my other machine which operated perfectly has them. Doubt thats the issue. Yes saf...daveone23 — 09:01 AM
462ron
LOL@ MrFixr. I remember an encounter with my first tube radio.. I think I have posted this before. Back when I knew just...462ron — 08:07 AM
HiFi (Chifi) tube amp build - but my own design.
I absolutely attribute my reaching 63 to God's benevolence, but this apart, it has never occurred to me to tap anything ...morzh — 07:55 AM
Does the 20 Deluxe use photofinish?
No, it did not use photo-finish. It is veneer with the shading on the front of changing darkness.morzh — 07:52 AM
Philco 66 No Plate Voltage
We could also mention the factory miswire of the tweeters on 38-690. Or the fact that even with this fixed, one could no...morzh — 07:51 AM
462ron
Just a thought here, those caps C33-C34 are .05mfd. That high of a value can possibly pass enough 60hz current to cause ...462ron — 07:37 AM
Hickok 288x
Isnt the chassis and ground the same on this machine? My other 288x that works is an identical machine and it does not h...daveone23 — 07:05 AM
Just got a 49-1613 need to know...everything!
According to the gallery, it has an AM/FM radio, with a two speed phonograph, the 78 side is an automatic changer, the 3...Arran — 01:32 AM
Philco 37-???
During the 1937 and 38 model years Philco was big on the concept of what would now be called a "modular" desig...Arran — 12:23 AM

[-]
Who's Online
There are currently no members online.

>