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

Problems with 116b after chassis cleaning
#1

I have been working on a model 116b for the last few months and up to now thing have been going well. It have finished the recapping process and have had the radio playing. The chassis was as dirty as any I have seen. Covered in a black oily sooty substance that is very hard to remove. I scrubed and cleaned using 409 cleaner and was able to get most of the grime off. I let the unit sit for a couple of days to dry and when I turned it on everything seemed ok in fact the shadowmeter that had not worked before now did. I came back to the project the next day and when I powered up the radio I had lots of popping and crackling from the speaker and smoke from the band switch area, also the 2000ohm resistor in the shadowmeter circut was so hot it began to smoke. The radio does still get weak reception but still lots of smoke and an occasional spark from the contacts on the band switch. I did try to dry the unit in the oven to no avail. The resistor is number 75 in the schematic. The shadowmeter no longer works. I was hoping some one could give me some suggestions on where to go from here. I received lots of help from members of the forum on last years project which was a 201x. It turned out great. Thanks, Gary


Messages In This Thread
Problems with 116b after chassis cleaning - by garyh1 - 12-10-2010, 11:56 PM



Users browsing this thread: 1 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 8220 online users. [Complete List]
» 1 Member(s) | 8219 Guest(s)
Avatar

>