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

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

Another 48-482
#1

So I got another 48-482 on e-bay:
http://www.ebay.com/itm/170833497448

So I get it, and replace the power cord (that had been replaced once before) and do the line filter block since I'm there. tested all the tubes and replaced the 7F8 that was almost dead (note only 2 of the tubes were not Philco branded) cleaned the controls and fired it up on a variac to see what I've got.

Plays great. no hum, but distorts when the volume is cranked up like a coupling cap is leaky. What has me amazed is, other than the power cord, a soldering iron hasn't seen the underside of the chassis in 64 years. NOTHING has ever been worked on but the power cord, and the dang thing still plays on all 3 bands!

yes I know what I should do, but I'm not doing anything till I take pictures, and back them up in 6 places. and then I may just stick a pico fuse in the HV and leave it be, if the filters are still good they may last forever! Icon_lol

John
Las Vegas, NV USA
#2

That's a far better deal then the 48-482 that Foggy was selling, and not just because of the price. Just on the blatent disregard he pays towards the original cabinet finish alone I would hate to think what kind of shortcuts and sloppy work he takes on the electronics, especially on a complex set like this.
I need to work on mine one of these days, the cabinet isn't bad but needs a refinish, the chassis hasn't been messed with too much but has a few rust spots. If I remember correctly my set had a twist lock can type filter condenser, in my experience those things last a long time in radios. I've had a few sets dating back to 1939 that still had the original in place and they still work. One thing that definately can not be trusted are the paper caps, there is just no way around those, moisture gets in and breaks down the wax paper dielectric so they all leak to some degree.
Regards
Arran
#3

Arran, you have 3 twist locks, one mounted to the chassis and 2 in clips underneath the chassis. Icon_smile

John
Las Vegas, NV USA
#4

Agree, the electrolytics are time bombs and can do a lot of damage when they go. Also the coupling and bypass capacitors - no way they aren't leaking.




Users browsing this thread:
[-]
Recent Posts
Philco 42-345 Restoration/Repair
That silver can capacitor is an aluminum electrolytic. You should replace it with an aluminum electrolytic with the valu...RodB — 11:46 PM
Philco 42-345 Restoration/Repair
Thank you Rodb and Gary for helping with clarification on these capacitors. Other than the Tiny 630volt one I'm not sure...osanders0311 — 10:17 PM
1949 Motorola 5A9M
Hello All; I found the CMB41L down in the basement, it is definitely a 1950-51 model, the capacitors have date codes ...Arran — 07:48 PM
Philco 42-345 Restoration/Repair
Hi, all the caps I order, other than the electrolytics, are of the 630V rating. No worries on it being too high, and no ...gary rabbitt — 05:46 PM
Philco 42-345 Restoration/Repair
Hi, there's a lot to consider when designing these circuits so you shouldn't have a lot of concern when replacing caps. ...RodB — 02:03 PM
Philco 42-345 Restoration/Repair
I have ordered and received new caps for this radio and hope I've ordered the correct ones. I tried matching them to the...osanders0311 — 11:35 AM
Philco newbie with P-1891-WA console questions
Hello Jeff , Far as the Electrolytic capacitors go here is a list of parts. that will work . I like using Nichicon and...radiorich — 09:50 PM
Philco newbie with P-1891-WA console questions
Well, I've been stumped at trying to get the first of 11 electrolytic capacitors. I got a schematic and have a list of t...Jeffcon — 07:54 PM
Model 80 Antenna Issue?
Thanks Gary and Rod.  I also found an article in the Philco Repair Bench under Service Hints and Tips, about installi...Hamilton — 12:32 PM
Model 80 Antenna Issue?
Hello Hamilton, here is a little information found in our Philco Radio Library at the bottom of the Home page. Hope it ...GarySP — 11:28 AM

[-]
Who's Online
There are currently 1610 online users. [Complete List]
» 1 Member(s) | 1609 Guest(s)
Avatar

>