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

Philco 53-954
#1

Hi, I have a Philco 53-954 with a 6AQ6 tube. My schematic shows info for the 954 & 950. The 950 shows it using a 6AQ5. What is the correct tube for my 53-954 ??? Also, the radio plays very well for 10 minutes then it goes nuts with noise. The station is still strong, but the crackling noise is not normal. I can't find what is causing this problem. I hope you can help !! THANK YOU VERY MUCH !!!!!!!!!!!!!!!!!!!
Joe
#2

Hi Joe and Welcome!!
Looks like it's a 35C5. The 6AQ5 heater current is much higher than the others with these series strung set they need to be the same. If you pop a 35C5 in it you can't hurt it. The 6AQ5 will be a problem and burn out other tubes. As for the noise sounds like you need some new caps or you've got a bad IF can.
GL
Terry
#3

Looking at the Rider ( http://www.nostalgiaair.org/Resources/784/M0013784.htm )info I think the 6AQ5 label is a typo. That label shows up on the views for parts locations but on the actual wiring schematic it shows a 6AQ6. A 6AQ6 is a twin diode-Hi mu triode while a 6AQ5 is a beam power pentode. The schematic is wired for the twin diode 6AQ6. You can check these tubes out at http://www.nj7p.org/Tube.php

As for the noise--have you changed out all the capacitors?
#4

Terry I think its the detector tube rather than the output tube that's in question unless I misunderstood what Joe was asking. Joe?
#5

THANK YOU VERY MUCH for your help !!! I put in a 35C5 and AM reception was weak/poor. I put the 6AQ6 back & reception was superb. I still get the crackling noise. I did replace all caps & electrolytics. Anything else I should try ??? THANKS !!!! Joe
#6

If the pin out is the same you could drop in a 12AT6 or 12AV6. I didn't look at the pin out
Terry




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM
Philco Predicta Siesta picture over time getting dimmer
I found that the wire insulation was burnt.  The fly back needs corona dope! Why would someone put that there?Platinumblonde36 — 01:09 AM
Philco Predicta Siesta picture over time getting dimmer
This is what it looked like beforePlatinumblonde36 — 01:01 AM
Philco Predicta Siesta picture over time getting dimmer
Platinumblonde36 — 12:58 AM
Philco Predicta Siesta picture over time getting dimmer
Platinumblonde36 — 12:57 AM
Philco Predicta Siesta picture over time getting dimmer
I'm finding some strange things in my set and for the most part it's also original, so I need to start going over everyt...Platinumblonde36 — 12:55 AM
12' Philco
Not anymore Mike. Andre The Giant Born: May 19, 1946, Coulommiers, France Died: Jan 28, 1993 (46 years), Paris, Fran...RodB — 11:53 PM

[-]
Who's Online
There are currently 3464 online users. [Complete List]
» 1 Member(s) | 3463 Guest(s)
Avatar

>