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

1200 and 2000 volt caps in the filter condenser block?
#2

Hi

Yes.

The highest voltage any of those caps are going to see is around 250-275 volts on (20)C, the 6A7 plate bypass.

1200 to 2000 volts is, quite frankly, overkill for those caps. It made sense when the sets were being made...Philco was winding its own paper caps back then and striving for good quality without going too far overboard. But even with the over-rated caps Philco was making, they were still...paper caps, and had a fairly short lifespan. With today's better film caps, there is no reason to use anything rated higher than 630 WVDC.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
[No subject] - by Ron Ramirez - 06-15-2008, 05:11 PM
[No subject] - by MinnesotaHam - 06-15-2008, 06:44 PM
[No subject] - by gary rabbitt - 06-18-2008, 11:51 PM
[No subject] - by Chuck Schwark - 06-19-2008, 09:43 AM
[No subject] - by gary rabbitt - 06-20-2008, 01:46 PM
[No subject] - by MinnesotaHam - 06-20-2008, 05:49 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
1930s Stewart-Warner Tombstone Radio need help identifying model number
UPDATE: I was able to pick up a signal generator on the cheap (amazingly enough) on feebay and I did an IF alignment fol...captainclock1988 — 09:53 AM
Philco 91 Schematic
Hi Rod, The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of ...dconant — 09:34 AM
Just got a 49-1613 need to know...everything!
I just found your post. I have this exact same model, and have had it since 1985 when I was 15 years old! I performed a ...MuzzcoVW — 09:11 AM
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM

[-]
Who's Online
There are currently 8935 online users. [Complete List]
» 1 Member(s) | 8934 Guest(s)
Avatar

>