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 Model 70 and Electrolytics
#1

Hi Everyone,

I'm still working on my model 70.I've just finished replacing the capacitors in the blocks and I wanted to check in on the two Wet Electrolytics before I get started on them. I've read the instructions on the Repair Bench and it looks like I will need a 6uF at 400V and a 10 uF at 475V capacitor to do the repair. Please correct me if I'm wrong.

Also, I read a previous posting that I think Ron made that said you could just buy both at 450volts. Did I understand that correctly and is that what is best?

One other question, does anyone have a preference of a place to purchase these? I'm going to look to see if I can pick them up locally but, I'm not sure I will be able to. I've ordered some things from Just Radios, and he was really great to deal with, but because this will be a smaller order I was hoping to cut down on the shipping from Canada.

Mike
#2

If it were a 500V electrolytic that might present a problem but two 450V of the correct uf rating should do. You can purchase caps from various places, I think both Ron and the repair bench have links. I purchase mine from ebay, along with just radios and Radio Daze. Modern caps are rated at least 10% surge over rated capacity so for a 450 volt cap you are looking at about 495v. Syl posted a nice way to rebuild caps where you screw the top on and it looks rather neat and easy to do. Check ebay item 380096414578, I have purchased from him many times on many items and his prices are fair.
#3

49stud663, thanks for the info and for the ebay suggestion. Syls idea looks pretty good too. I'm not sure which direction I'll go yet, but I'm looking forward to hearing this thing play!
#4

Hi Mike,

6uf is not a standard value anymore. The caps in that radio are not too critical though. You can just use 10uf/450v electrolytics for both of those. As far as purchasing them is concerned, I usually wait until I need quite a few capacitors and order all at the same time, so as to minimize the shipping costs.

Regards,

Ed
#5

Thanks Ed. I wondered why 6 uF was so hard to track down. And you are right, I should have ordered these with the other capacitors, but hind site is 20-20 in this case. This is my first attempt at a restoration, so I'm learning as I go. I decided to order a dozen of them and figured I'd have a few on hand when I move on to the next project. Thanks again for the help, I hope to report that I hear music coming from it soon.
#6

I can still find 4.7's and 6.8's if you really want close to 6uf you can use the 6.8's or go with 10's. I do the same also, purchase 5-10 or so of each common rating so I have some stock and to reduce shipping costs.




Users browsing this thread: 1 Guest(s)
[-]
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 1897 online users. [Complete List]
» 1 Member(s) | 1896 Guest(s)
Avatar

>