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

Philco 46-1203
#16

It doesn't matter. If the value is small and you can omit using electrolytics, do so - electrolytic caps are a limited life part.
But if you do use them, observe the polarity.
#17

Thanks Skyscraper. The caps in question are 10MF and 40MF. Due to their higher value, would it be okay to use an electrolytic? Which would be better?

Here is the schematic and diagram: http://s270.photobucket.com/user/Colorad...ent&page=1
#18

Those have to be electrolytics I think. I also think it is a doubling rectifier so the voltage ratings you use have to be about 350V. That is 250V DC will not be exceeded if the load is disconnected (hence the 350V rating to have margin) and normally it is lower (175/110V for 40uF and 10uF respectively) but this is if the load is OK.

So, use electrolytics 40uF and 10uF 350V.
#19

Thanks to everyone for their assistance. The 60hz hum is now gone and the radio sounds pretty good for having the original (from what I can tell) speaker. Now on to the record player portion of the unit.
#20

The cap with the wire wrapped around it is a crude LC circuit intended to make the chassis have a low impedance connection to the radio B- supply line at the IF or RF frequencies, but have the impedance be somewhat high at 60Hz. Radio could oscillate without it. You could carefully slide the coiled wire off the old cap, keeping the turns spacing the same, and putting the coil over a new cap.
[Image: http://www.philcoradio.com/phorum/attach...p?aid=2757]




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
The list of my radio & TV collection!
Yes, Michael. But strangely enough, I managed to keep the original veneer. I must admit that I don't really like it, so ...RadioSvit — 02:21 PM
The list of my radio & TV collection!
Good radio. I bet there was a lot of veneer fixing.morzh — 02:16 PM
Philco 46-480 Electronic Restoration
>> it is because I am retired and a little demented. You have just the right amount of it. No perfectly sane p...morzh — 02:14 PM
The list of my radio & TV collection!
Old Zenith 5S-29 tube radio. First turn-on after repair and reception quality testing. Demonstration of the operation of...RadioSvit — 01:27 PM
Philco 42-345 Restoration/Repair
Welcome to the Phorum, osanders0311!  Regardless how far you intend to restore this set, first priority should be replac...GarySP — 11:51 AM
Philco 46-480 Electronic Restoration
Joseph, it is because I am retired and a little demented. My problem is that I wanted to own a collection that spans th...MrFixr55 — 11:29 AM
Philco 46-480 Electronic Restoration
Wow, here I am with only two restored radios. I’ve got to boost those numbers! If you can’t run with the big dogs, you m...jrblasde — 10:04 AM
Philco 46-480 Electronic Restoration
Hello MrFixr55, That will for sure keep you out of trouble! Last Sunday was spent mostly doing yard work anyway the we...radiorich — 09:50 AM
Philco 46-480 Electronic Restoration
Throw in all the Audio equipment that has to be kept in a bedroom (my office)L. 8 portable self contained PA speakers, ...MrFixr55 — 07:40 AM
Philco 42-345 Restoration/Repair
Looking at the pic supplied by Rod B, you can duplicate the missing loop antenna. 10 gauge copper wire can be used to m...MrFixr55 — 01:20 AM

[-]
Who's Online
There are currently 1141 online users. [Complete List]
» 1 Member(s) | 1140 Guest(s)
Avatar

>