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

Arvin 442 cap question
#1

Hi everyone!

im just getting into radio restoration, and this is the third radio i have attempted repairing. 

the little radio actually still worked when i got it, but it obviously needed recapped and generally gone-over, so i found the schematic and ordered up my caps.

well, like a dummy, i went ahead and ordered one of everything off the parts list, while neglecting to look at the radio itself to see what was actually in there. most everything was correct, except i found wildly different values when it came to the three section electrolytic can cap.

the parts list calls for a 40mfd/150v, a 20mfd/150v, and a 20mfd/25v
the actual can cap in my radio is a 50mfd/150v, 30mfd/150v, and a 100mfd/25v

i know the voltages dont really matter as long as you exceed the working voltage of what was intended to be in there, but im not sure why the capacitances are off by so much. the schematic says that it covers several different models, but it does not specify different can caps for the different models, so that ones got me scratching my head.

i guess the bottom line is i should probably replace the old caps with ones of equal value, regardless of what the schematic says, because the dang thing worked before, therefore it will work again, right?

anyone have any thoughts?

thanks!
Brian


Messages In This Thread
Arvin 442 cap question - by Foose - 12-25-2017, 12:18 PM
RE: Arvin 442 cap question - by Phlogiston - 12-25-2017, 01:10 PM
RE: Arvin 442 cap question - by Radioroslyn - 12-25-2017, 01:10 PM
RE: Arvin 442 cap question - by Foose - 12-25-2017, 04:13 PM
RE: Arvin 442 cap question - by Radioroslyn - 12-25-2017, 05:33 PM
RE: Arvin 442 cap question - by Phlogiston - 12-25-2017, 06:18 PM
RE: Arvin 442 cap question - by Arran - 12-25-2017, 10:56 PM
RE: Arvin 442 cap question - by Foose - 12-27-2017, 04:37 PM
RE: Arvin 442 cap question - by Radioroslyn - 12-27-2017, 07:35 PM
RE: Arvin 442 cap question - by Foose - 12-28-2017, 04:07 PM
RE: Arvin 442 cap question - by Foose - 12-30-2017, 07:03 PM
RE: Arvin 442 cap question - by Radioroslyn - 12-31-2017, 12:39 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM
Zenith H725
Ed; One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM
Zenith H725
I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM

[-]
Who's Online
There are currently 2375 online users. [Complete List]
» 1 Member(s) | 2374 Guest(s)
Avatar

>