Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
I read on a resource website that I can change all my paper/wax capacitors to film capacitors of a higher volt rating.. Did I understand that right? And can I find the one with the highest VDC and switch them all out to film capacitors of a equal VDC or higher? I think I am finally beginning to understand this. I’ve got a learning disability so it takes me longer to understand stuff (especially when written and on here. I’m more of a visual learner so, please be patient with me guys.  I’ll probably be asking some more questions
Adam
Posts: 1,402
Threads: 70
Joined: Oct 2007
City: Linn Creek, MO
Adam, I am also one that learns by doing.
You can use 630 volt film capacitors to replace all the paper capacitors in your radio. There may be an exception on some radios such as a cap connected to the primary of the output transformer. You can use the “orange dip “ type or the yellow tubular ones, it doesn’t make any difference at all. There are several dealers selling capacitors, including a couple of members of the Phorum
Steve
M R Radios C M Tubes
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
Thank you Steve! That makes it a lot easier to restore this thing, hopefully I can get this playing again soon. A few of the paper capacitors look blown to me anyway but, I’ve read not to bother with them regardless and just replace them. The speaker maybe bad too but, I won’t know that until I’ve recapped everything
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
Steve, do I need to get them all in the different Ufs that the schematic calls for or can I just use the highest one it calls for to cover all the ranges?
Posts: 5,084
Threads: 270
Joined: Nov 2012
City: Wilsonville
State, Province, Country: OR
Adam, you should get the film capacitors with capacitance (uF) values close to the values that are in the radio or on the schematic. Modern capacitors do not come in some of the odd values that used to be used but you can usually get something close. Close is usually good enough.
Posts: 1,402
Threads: 70
Joined: Oct 2007
City: Linn Creek, MO
Yes, an example .05 is no longer a standard value, in this case you would use .047 or if your radio has a .02 you would use a .022. As Bob said close will be good enough.
Steve
M R Radios C M Tubes
(This post was last modified: 06-23-2019, 08:29 AM by Steve Davis.)
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
Thanks for the help guys!
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
Steve, my schematic saids one is .01uf.. Would I use a .22uf in that case too? I’m assuming I would
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
No, use a new .01 uF.
This might help:
If the schematic reads - Use
.001 uF - .001 uF
.002 uF - .0022 uF
.003 uF - .0033 uF
.005 uF - .0047 uF
.01 uF - .01 uF
.02 uF - .022 uF
.025 uF - .022 uF
.03 uF - .033 uF
.05 uF - .047 uF
0.1 uF - 0.1 uF
0.2 uF - 0.22 uF
0.25 uF - 0.22 uF
0.3 uF - 0.33 uF
0.5 uF - 0.47 uF
--
Ron Ramirez
Ferdinand IN
Posts: 15,811
Threads: 553
Joined: Oct 2011
City: Jackson, NJ
0.07uF - 0.068uF.
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.
Posts: 66
Threads: 7
Joined: Jun 2019
City: Austin
State, Province, Country: Minnesota
Users browsing this thread: 4 Guest(s)
|
|
Recent Posts
|
|
HiFi (Chifi) tube amp build - but my own design.
|
| Tim,
nice write up and thanks for sharing !!
Sincerely Richardradiorich — 02:47 AM |
|
HiFi (Chifi) tube amp build - but my own design.
|
| Well, this was a real "Hum-Dinger" :lol: ! This will be kinda long, but hopefully it will help others having t...TV MAN — 01:55 AM |
|
Shadow Meter Bulb
|
| Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM |
|
Philco 41-608 changer coupler
|
| 3D-printing...short of machining, of course.
Or molding.morzh — 05:20 PM |
|
Philco 41-608 changer coupler
|
| Thanks, Morzh.
That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM |
|
12' Philco
|
| If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel.
Kareem would have an e...morzh — 01:48 PM |
|
12' Philco
|
| And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM |
|
Hickok AC51 tube tester
|
| I think they have only shown the secondaries of the transformer.
Two of them feed the rectifiers' filaments.morzh — 12:58 PM |
|
IF can wire size and Rubber mounts?
|
| Arran
If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM |
|
12' Philco
|
| Rod,
Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently.
H...morzh — 12:54 PM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
