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

38-116 won't play
#1

I'm needing some suggestions for my 38-116. Until recently this radio played beautifully, but now it only emits a crackling sound. It almost sounds like I could tune a station in at any time when I turn the dial, but to my dissappointment, that never happens.

I'm fairly new to radios and have managed to restore a couple of 5-tube sets, but pinpointing the issue in such a large console is a little overwhelming without first being pointed in some sort if direction. Any suggestions would be helpful!

If it makes any difference, the volume knob does not affect the volume of the crackle and changing the bands still produces the familliar popping sound.
#2

It's possible you may have a problem in the bandswitch. Check the wiring associated with the switch, and perhaps some contact cleaner in the switch wafers itself. This is a quick and simple fix, assuming it works. Icon_smile

Give this a try first - if no luck, we can move on to another possibility from here. Good luck!

Bill

Sent from my Pentium II on the AT&T Dial Network
#3

Thanks, Bill... I'll try that in the morning and post the results.
#4

I cleaned the contacts and it's still not working. What's the next step?
#5

I would think that since the volume control has no effect on the crackle, the problem is after the volume control in the audio preamp/driver/output stage.

I have read where 38-116's have problems with the driver transformer.
You might want to hang your ohmeter on it.

Just my two cents.

Ed
#6

Thanks, everybody! I spent the better part of my day with my DMM tracing everything I could think of. I turns out that I missed one of those long wirewound resistors attached to the side of the chassis. Now all I have to do is find a 14k, 40 watt resistor and I'm back in business.




Users browsing this thread: 1 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 9640 online users. [Complete List]
» 1 Member(s) | 9639 Guest(s)
Avatar

>