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

Where to begin on Gram's 48--1270??
#1

Ok, it's beat up, but I love it. I grew up pushing the buttons on the radio that never worked. Now that Gram is in assisted living and the house is being cleaned out, I have the Philco! Oh, before I forget, Grandpa was an avid train collector who had a whole train layout on the third floor of the house (right through the walls!). At some point, long before me, he took the turntable off the phonograph and used it for his roundhouse on the layout, never to be seen again!!

Well, now what? My brother and I plugged it into an extension cord and then into the wall (the old plug is falling apart) and it did light up and crackle a bit, but that's it. The phonograph motor works, too. If I remove the radio chassis and blow it out with compressed air, how do I know if the capacitors, tubes, etc. are good or bad? Anyone in Massachusetts or Rhode Island willing to help?

Thanks, Chris.
#2

For starters read this before plugging in the radio the first time:
http://www.philcoradio.com/tech/plugin.htm
http://www.antiqueradio.org/powerup.htm

Diagram can be found here http://www.nostalgiaair.org/Resources/617/M0013617.htm

here's an article on changing / replacing the capacitors.
http://antiqueradio.org/recap.htm

Hope this helps.
The humming/buzzing might be due to a leaky filter capacitor that has lost it's ability to filter out the ac ripple from the power supply.. I'd really start by the basics and replace the electrolytic caps before trying to get stations.
Terry

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
#3

Well, I'm getting ready to start working on the chassis, but I have several questions.

I'd like to "pre-order" the capacitors and resistors since I have none. Can you tell me what caps and resistors I should order and in what quantity? Thanks!
#4

Short answer is all of 'em except for wirewound resistors and candohms if any, that you have measured out of circuit and are still OK. You will find that one order for everything will not be too much, considering shipping and handling charge, so if you are doing a restoration rather than a repair, why not?

Others might disagree, and that's fine.
#5

Were the trains still there when you got your Philco? I was into that myself many years ago. Sounds neat!
#6

We can help you get the radio working. Trains, another thing. Lionel O guage was my stuff, long long gone . Son had HO guage but we only dragged it out for Xmas. Acrtually I hate trains, after commuting from Long Island to New York City for decades only to take another trip on the subway to do work that I could easily have done at home. Choo Choo.
#7

Ok, I counted and listed out all the resistors and condensors listed in the parts manual. Would they all be the same wattage? From whom should I order them? Thanks!




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head.  Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM
Made mistake & did not label connection
What does the dotted line representing that surrounds the tube in the schematic?georgetownjohn — 02:17 PM
Made mistake & did not label connection
Hello John, I have been there either label got lost or was not labeled ! Sincerely Richardradiorich — 02:15 PM
Made mistake & did not label connection
Sorry, it is a Philco 37-640.  Does that help?--Johngeorgetownjohn — 02:14 PM

[-]
Who's Online
There are currently 6387 online users. [Complete List]
» 4 Member(s) | 6383 Guest(s)
AvatarAvatarAvatarAvatar

>