Noise in 680X and 37-690

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

Linear Mode

Noise in 680X and 37-690

Fred R
Junior Member

Posts: 42
Threads: 4
Joined: Dec 2005
City: Philadelphia, PA

12-28-2005, 10:23 PM

I have restored a 680X, 37-690 and 38-690 a number of years ago. The 38-690 works great especially after reading Ron's notes on the tweeters. Both the 680X and 37-690 have had an annoying static in the audio section, still there with the volume down. It seems to be the driver transformer's primary. The 680X developed a problem and I have to pull the chassis out anyway. This is the version that has the dial under the lid and is the worst design for pulling the chassis as the cabinet has to be laid down to pull it. I am hoping it's something other than the driver transformers. Both sets (the 680X when it was working) seem to quiet down when on for a while. Has anyone who has worked on these sets ever had this problem?

Fred R

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Noise in 680X and 37-690 - by Fred R - 12-28-2005, 10:23 PM

RE: Noise in 680X and 37-690 - by Sam samuelian - 05-22-2012, 05:42 AM

RE: Noise in 680X and 37-690 - by Arran - 05-22-2012, 06:51 PM

RE: Noise in 680X and 37-690 - by Ron Ramirez - 05-22-2012, 07:01 PM

RE: Noise in 680X and 37-690 - by Sam samuelian - 05-22-2012, 10:25 PM

RE: Noise in 680X and 37-690 - by morzh - 05-23-2012, 10:06 AM

RE: Noise in 680X and 37-690 - by Ron Ramirez - 12-30-2005, 12:37 AM

[No subject] - by Fred R - 12-30-2005, 10:41 AM

[No subject] - by Ron Ramirez - 12-30-2005, 11:30 AM

[No subject] - by Chuck Schwark - 12-30-2005, 12:00 PM

[No subject] - by Frank - 04-13-2006, 10:17 AM

Noise in output - by AI2V - 04-15-2006, 09:27 AM

[No subject] - by Ron Ramirez - 04-16-2006, 10:06 PM

[No subject] - by Frank - 04-19-2006, 09:03 AM

[No subject] - by Frank - 04-24-2006, 08:55 AM

[No subject] - by Frank - 04-25-2006, 08:41 AM

View a Printable Version

Users browsing this thread: 5 Guest(s)

Recent Posts
A Marconi model 86
Dan; I've seen some Marconi sets like that before, one was a console though I'm not sure if it was a model 86. It's a...Arran — 05:09 PM
An attempt to remove the Field Coil from a G speaker
Milkjug plastic? Whatever is chosen for the spider, the material must be compatible with popular adhesives... Th...Chas — 05:05 PM
An attempt to remove the Field Coil from a G speaker
Mike; I would not use plastic from a milk jug for a spider, first it's polyethylene/polypropylene which resists most ...Arran — 04:56 PM
Philco model 60
This is my thread on 60 from 2016. I had to rewind the osc coil, and I actually counted the turns and then rewound i...morzh — 03:34 PM
Philco model 60
Yes, Mark belongs to the same Michigan Antique Radio Club that I do. I suspect that the oscillator coil is in need of a ...Radios1340 — 03:10 PM
A Marconi model 86
Yeah. I am dreading the thought of what to do with all my consoles when I will no longer be able to move them around. I...morzh — 02:51 PM
1947 Silvertone 7086 Wire Recorder/Phono/Radio on YouTube
Cool gadget, Buzz. I took me a couple of second to undestand that that oscillating thing makes the wire to spool correc...morzh — 02:50 PM
A Marconi model 86
My back hurts already, you could build a house with all the wood. PaulPaul Philco322 — 02:49 PM
1947 Silvertone 7086 Wire Recorder/Phono/Radio on YouTube
Part 4 of this series now uploaded link below to anyone interested Buzz — 02:39 PM
Philco model 60
Welcome to the Phorum, Radios1340! The oscillator coil on the 60 is a common culprit. I just bought a 60B (June 1934) ...GarySP — 02:33 PM

Who's Online

There are currently 8212 online users. [Complete List]
» 2 Member(s) | 8210 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me