Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

37-630 B+ Ripple
#3

Hi Terry

Thanks for the reply, I have been away for a couple of days. How do you suggest I check for the grid leakage? I have a Jackson 648 tube tester but it didn't show anything. Maybe if I can pin down the stage the noise coming from I can just swap tubes. I'll try that.

What do you think of the amount of ripple I am getting on B+? The radio decided to work properly again, I am sure for just a short time, and the ripple voltages are about the same as when all the noise is present.

Jim


Messages In This Thread
37-630 B+ Ripple - by AvoJim - 01-20-2011, 07:35 PM
Re: 37-630 B+ Ripple - by 7estatdef - 01-20-2011, 10:41 PM
Re: 37-630 B+ Ripple - by AvoJim - 01-22-2011, 11:58 AM
Re: 37-630 B+ Ripple - by 7estatdef - 01-22-2011, 11:21 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Correct model 84 Ac plug an cord type
I remember a bakelite "lampshade" (a fancy lampshade) style plug being available in the hardware store when I ...MrFixr55 — 10:39 AM
Correct model 84 Ac plug an cord type
Hello Arran Yes, I also like the lampshade style plug ! Sincerely Richardradiorich — 08:46 AM
Restoring Philco 38-14
Hello morzh, Nice explanation on the x and y capacitors and glad you are narrowing down the issue with this set ! Si...radiorich — 08:43 AM
Correct model 84 Ac plug an cord type
From what I read Philco went to using brown rubber power cords in 1936, so cloth was used in the 1935 and earlier models...Arran — 11:25 PM
Correct model 84 Ac plug an cord type
Hi Bruce, I have not worked on an 84, but in general, power cords for almost any radio prior to 1938 was cloth covered...MrFixr55 — 08:34 PM
Restoring Philco 38-14
OK, well, so after staring at the sch again, I realized the problem had to be the #12/12A padder. I put a scope on the o...morzh — 08:15 PM
Correct model 84 Ac plug an cord type
Hello Bruce, I mostly use brown far as my cloth powercords go ! Here is the plug that I have used bakelite Acorn style...radiorich — 08:05 PM
Correct model 84 Ac plug an cord type
Looking for as correct as can find the right Ac plug an the correct colored cloth line. Ive seen many old photos but mos...Bruce — 04:13 PM
Restoring Philco 38-14
Rod Two Y-caps make sense if you use them from L/N to the chassis; this is only makes sense in the transformer radios w...morzh — 10:11 AM
Restoring Philco 38-14
Mike, I'm curious about a specific use of he Y cap. Lately I've seen a single cap across the power transformer primary. ...RodB — 09:01 AM

[-]
Who's Online
There are currently 4750 online users. [Complete List]
» 1 Member(s) | 4749 Guest(s)
Avatar

>