Posts: 228
Threads: 64
Joined: Dec 2013
City: Northbrook, IL
According to the code 121 schematic, there is a 10 mfd cap. (#75) between the driver's secondary center tapping and the ground. And there is one on mine,under the chassis, recent replacement. Later 16b sets had such capacitors installed on the chassis (small aluminum can), but in my case there is no provision for it . I checked some photos of the 121 code sets and could not find such capacitor on the top of the chassis.
Also, any place I can find the new large rubber ring for the dial wheel? I can make one, but if the professionally made ones available, I would rather go that way. Thanks.
http://www.nostalgiaair.org/PagesByModel...013139.pdf
(This post was last modified: 07-17-2014, 08:44 AM by fields 100.)
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
5-band Model 16 sets with the separate electrolytic (75) are early production. Later production models included (75) with one of the main electrolytics, making it a 2-section unit. I'm not near my service info at present, so I do not remember which one but I suspect it was probably (88 ).
If a 16 chassis has the separate capacitor (75), it was mounted under the chassis, not on top.
As for the rubber rings, look here:
http://www.philcoradio.com/tech/drive.htm
--
Ron Ramirez
Ferdinand IN
Posts: 228
Threads: 64
Joined: Dec 2013
City: Northbrook, IL
Ron,
I just looked deeper behind all those new caps and wires and one original E-cap IS, indeed, dual.
Thanks so much.
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Remember, the positive end of (75) goes to ground. Negative to B-. 10 uF, 50 volts is more than sufficient as a replacement for (75).
--
Ron Ramirez
Ferdinand IN
Posts: 2,353
Threads: 92
Joined: May 2010
City: Clayton, NC
I made that mistake once.....
Posts: 228
Threads: 64
Joined: Dec 2013
City: Northbrook, IL
Live and learn... It is so easy to screw up-unless paying good attention to the schematic. Especially with a dual e-cap.
(This post was last modified: 07-18-2014, 01:36 PM by fields 100.)
Posts: 16,266
Threads: 566
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Well...fixing radios is about reading schematics. Why would anyone not pay good attention to it?
Posts: 228
Threads: 64
Joined: Dec 2013
City: Northbrook, IL
That is when one feels so good about his find, that he gets overexcited.
(This post was last modified: 07-18-2014, 01:52 PM by fields 100.)
Posts: 348
Threads: 48
Joined: Oct 2013
City: Tioga, Texas, USA
Fields 100;
Congratulations on selecting an excellent Philco to restore! This is a very good performing set when working correctly. It is well worth the effort to restore.
We will be glad to help along the way.
Joe
KC5LY
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
Philco 91 Restore Code ??
|
| Can someone tell me if my 42 tubes are connected triode or pentode in fixed or cathode bias? How could I tell by looking...dconant — 10:47 AM |
|
Philco 40-120C Restoration
|
| Hello David,
that is great news about the tubes source being local !
Sounds like you got good start on the radio .
...radiorich — 09:41 AM |
|
An attempt to remove the Field Coil from a G speaker
|
| Mike;
I've only run into a speaker with an open filed coil twice, and they were on newer speakers from the 1940s. One ...Arran — 12:48 AM |
|
An attempt to remove the Field Coil from a G speaker
|
| Arran
Yes, this is my plan for now and what do I got to lose, this is not even the speaker from this radio, but one o...morzh — 10:44 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| Mike;
I would unwrap the field coil, and see if maybe there a break near one of the ends, like where the coil wire att...Arran — 10:23 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| ...and this is what I did. I fed a little LT into the screwholes with a small brush, and a little on the rim next to the...morzh — 09:52 PM |
|
Philco 40-120C Restoration
|
| I combined the two 40-120C threads together as we like to keep the discussion of the same radio together. It helps with...klondike98 — 09:36 PM |
|
Philco 40-120C Weak, Distorted Ouput
|
| Just checked were I buy tubes price is four dollars. So living in Florid we have a local source for tubes. David David — 09:14 PM |
|
Philco 40-120C Weak, Distorted Ouput
|
| The higher voltage may be due to higher mains voltage. My mains run 120-125AC when the set was new mains would be 110-11...David — 09:09 PM |
|
Philco 40-120C Weak, Distorted Ouput
|
| Thank you for your reply. I pulled a speaker from a Philco 41-221 and received the same result. I used a signal tracer t...bluecap — 08:45 PM |
|
Who's Online
|
There are currently 4162 online users. [Complete List]
» 1 Member(s) | 4161 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
