1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
640b e-cap values
WyTex
Senior Member
****
Posts: 289
Threads: 42
Joined: Jan 2014
City: Jeffersonville State, Province, Country: PA
#1

03-03-2023, 11:01 AM
Morning guys -

Found this nice looking Philco at an antique shop last month and decided to bring it home as a birthday present to myself.   

https://philcoradio.com/library/download...l.%201.pdf

After rebuilding the bakelite blocks, checking resistors, tubes, etc, this set has hum that does not change with volume.  As I was about to swap out tubes one by one I noticed part #68, a 3 part electrolytic can on top comprising 2mfd, 2mfd and 1mfd e-caps.  I missed this and suspect it could be the hum source.  Been unable to locate these value electrolytics so far.  Are there alternatives for 1mfd and 2 mfd, 450v caps?  AES has these but only at 50v rating.  

Looking for guidance.  
Thanks very much fellas,
Paul


Attached Files Image(s)
   
Find
« Next Oldest | Next Newest »


Messages In This Thread
640b e-cap values - by WyTex - 03-03-2023, 11:01 AM
RE: 640b e-cap values - by Brad Winder - 03-03-2023, 11:17 AM
RE: 640b e-cap values - by morzh - 03-03-2023, 12:57 PM
RE: 640b e-cap values - by WyTex - 03-03-2023, 03:04 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM

[-]
Who's Online
There are currently 6699 online users. [Complete List]
» 1 Member(s) | 6698 Guest(s)
Avatar

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