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: 1,412
Threads: 72
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: 5,170
Threads: 274
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: 1,412
Threads: 72
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: 16,510
Threads: 572
Joined: Oct 2011
City: Jackson
State, Province, Country: 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: 1 Guest(s)
|
|
Recent Posts
|
|
Model 70 Cabinet Trim
|
| Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM |
|
philcorepairbench.com - shadow-meter
|
| Thanks Ron.fenbach — 02:43 PM |
|
Model 70 Cabinet Trim
|
| Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM |
|
philco predicta
|
| Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM |
|
Model 70 Cabinet Trim
|
| Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM |
|
Model 70 Cabinet Trim
|
| How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM |
|
philco predicta
|
| Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM |
|
Philco model 38 code 121 not receiving signal.
|
| So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM |
|
462ron
|
|
It’s on the bottom of the homepage of our Philcoradio.com homepage!
Ron462ron — 07:20 AM |
|
Model 70 Cabinet Trim
|
| Steve might have some trim left.
Not sure he is making anything.morzh — 06:12 AM |
|
Who's Online
|
There are currently 555 online users. [Complete List]
» 2 Member(s) | 553 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
