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

41-608
#14

The schematic shows a .004mfd cap (part 65) connected to a 220k resistor. Your photo shows the .003mfd cap connected to a 220K resistor. You will have to verify that the two parts physically the same by comparing the schematic to the wiring. When you replace parts that are 60 to 80 years old there is a world of unknown possibilities that can happen over that period. Including incorrect part identification like part 56 in your schematic. It looks like a 0.002mfd cap but the parts list says it's a 0.004mfd. Minor differences like this are common and what you use to replace the part is immaterial since 80 years ago the tolerance ratings for these parts was 20%. Same for the 8-12-16 electrolytics. The only one to be concerned about is the 12. It's attached to the rectifier cathode so there is a maximum value for that cap. Quite often I let my wallet tell me what value to buy, if I need a 0.004 and three 0.005 caps I'll buy ten 0.0047s because I can pay less for the ten than the four. Hope this is clear the numbers get in the way.


Messages In This Thread
41-608 - by philco4me - 01-08-2024, 08:20 PM
RE: 41-608 - by David - 01-08-2024, 09:04 PM
RE: 41-608 - by klondike98 - 01-08-2024, 09:19 PM
RE: 41-608 - by Radioroslyn - 01-08-2024, 09:21 PM
RE: 41-608 - by RodB - 01-08-2024, 09:36 PM
RE: 41-608 - by philco4me - 01-09-2024, 09:27 AM
RE: 41-608 - by philco4me - 01-11-2024, 03:31 PM
RE: 41-608 - by RodB - 01-11-2024, 03:49 PM
RE: 41-608 - by philco4me - 01-12-2024, 02:50 PM
RE: 41-608 - by philco4me - 01-13-2024, 01:52 PM
RE: 41-608 - by philco4me - 01-13-2024, 02:01 PM
RE: 41-608 - by klondike98 - 01-14-2024, 02:20 PM
RE: 41-608 - by philco4me - 01-22-2024, 01:22 PM
RE: 41-608 - by RodB - 01-22-2024, 02:20 PM
RE: 41-608 - by philco4me - 01-22-2024, 03:22 PM
RE: 41-608 - by radiorich - 01-23-2024, 12:04 AM
RE: 41-608 - by RodB - 01-23-2024, 10:44 AM
RE: 41-608 - by philco4me - 01-23-2024, 08:45 PM
RE: 41-608 - by philco4me - 01-24-2024, 11:43 AM
RE: 41-608 - by RodB - 01-24-2024, 06:19 PM
RE: 41-608 - by philco4me - 01-24-2024, 07:17 PM
RE: 41-608 - by philco4me - 01-29-2024, 11:05 PM
RE: 41-608 - by radiorich - 01-30-2024, 10:04 AM
RE: 41-608 - by philco4me - 01-30-2024, 11:52 AM



Users browsing this thread:
[-]
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 2641 online users. [Complete List]
» 3 Member(s) | 2638 Guest(s)
AvatarAvatarAvatar

>