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

118X electrical overhaul
#16

As long as the IF transformer coils are not open or shorted, don't worry about the wax. I have a 118 and my IF's look the same as yours.

That additional electrolytic was added by a repairman and is not original or on the schematic. It was probably installed to reduce hum because the original filter caps were failing. 

I used a larger value replacement electrolytic after the choke, 22 uF (73)  to reduce background hum somewhat. Don't use more than 10 uf for cap (74) or you will increase the B+ voltage above spec. This cap should have a high ripple current rating as it is a bit stressed. I used a 10 uf 630v Polypropylene film in my radio to avoid problems.
#17

RF coils dripping wax is common thing I see, not necessarily something to fret about. Could be just warm enough under there that some wax ran.
Coils, if not open, same as mica caps, innocent till proven guilty.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#18

So this project hasn't died out yet, and I'm in the middle of recapping the unit. (life has been busy!)

In regards to replacing a Multi-Can Capacitor...

If there are 2 or more leads on a single terminal, say 3 leads going to a 1uF terminal, can you split up the leads and give them each there own 1uF capacitor? One of the current leads comes all the way across the chassis, and I have a good place to put an individual 1uF cap.

I can't see this causing any harm, and I would think they did this just to lower the parts count.

Thanks!
#19

There might be the need for all three to be together and then de-copuled with 1uF cap, so, likely no, if there were three leads on the same cap, I would keep it this way.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 91 Restore Code ??
I knew that Fluke was the Cadillac so with that in mind what Fluke would you recommend I get?dconant — 03:53 PM
Philco 91 Restore Code ??
Yep. 10W is probably enough. Also, if the meter measures Farads, then it should also have that "Delta" button...morzh — 02:38 PM
Philco 91 Restore Code ??
I measured the current through the resistor I am using as a replacement for the speaker field coil and got 40ma. So that...dconant — 02:32 PM
Philco 91 Restore Code ??
No I'm not saying I don't own a DMM. I have a CCC one (Thsinde 18+). I forgot that could read caps. I did purchase a Flu...dconant — 02:28 PM
Philco 91 Restore Code ??
Are you telling me you do not own any decent DMM, that can measure capacitances from a few pF and up? Even todays CCC (C...morzh — 01:44 PM
Restoring Philco 96
Well, selectivity today, with stations disappearing, is not such a problem for TRF as it likely used to be. Although wh...morzh — 01:42 PM
Philco 91 Restore Code ??
Mike I did that already and can't really get any kind of reading. My little Honeytek A6013L reads 0 on all scales. One s...dconant — 01:38 PM
New member
Well, to be frank, when it comes to radios, especially the older types, a person with no electronic background could be ...morzh — 01:33 PM
Restoring Philco 96
Thanks for mentioning the video you had uploaded. Somehow I missed that post. Just watched your video, and it sounds to ...jrblasde — 01:28 PM
Restoring Philco 96
Joseph well, for now we will have to get by the video I have made, as the final video would not be made before I get a ...morzh — 01:04 PM

[-]
Who's Online
There are currently 3085 online users. [Complete List]
» 2 Member(s) | 3083 Guest(s)
AvatarAvatar

>