1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

Linear Mode
Philco 112 Lowboy restoration (caution, lots of images)
PhilcoFord
Unregistered
 
#14

01-02-2011, 10:59 PM
So what ever happened with this 112 restoration? I just spent the weekend on a early 112 chassis with pretty much the same layout. Got the set with no tubes and a friend did a beautiful job on the cabinet so now it is my turn to get the chassis ready.

Finally found a Hickok 530-B Tube tester up on my shelf that helped validate some tubes for it, and it seemed like it powered up OK with good audio and IF, but it took a while for me to pay proper attention to the tube basing and lack of plate voltage at the RF Amp. Traced it to the coil in the plate circuit was open and was able to find the break near the first turn and solder in a 'patch.'

Voila, we have a radio, just a little intermittently low on sensitivity and gain intermittently, but able to get stations all over the western US when it is working right :-). Probably still a bad cap in a block somewhere, as I didn't touch any of those or the condenser block. This set has great B+ and no hum.
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
[No subject] - by PhilcoPhil - 03-27-2008, 05:49 PM
[No subject] - by Ron Ramirez - 03-27-2008, 05:51 PM
[No subject] - by gary rabbitt - 04-06-2008, 01:32 PM
[No subject] - by BDM - 04-06-2008, 06:15 PM
[No subject] - by audin - 04-08-2008, 02:38 PM
[No subject] - by audin - 04-08-2008, 02:41 PM
[No subject] - by audin - 04-08-2008, 02:59 PM
Re: Philco 112 Lowboy restoration (caution, lots of images) - by PhilcoFord - 01-02-2011, 10:59 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM

[-]
Who's Online
There are currently 2144 online users. [Complete List]
» 1 Member(s) | 2143 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration