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

Adjusting the 66 compensators
#8

Got my speaker back and have been trying to align this with no luck. Once I start reaching a peak reading on my output meter the radio breaks into a loud squeal/motorboating. If I back off the one compensator so that the squeal is gone and try to adjust the next one it starts squealing again. This with and withouit using a signal generator.

If I just back off each compensator to eliminate the squealing the radio picks up AM stations just fine but the Sw motorboats like crazy. Have already installed the 70 ohm resistor between cap #14 and the osc. coil like the service bulletin states.

Another thing I noticed is that when adjusting the compensators, it not only varies the volume but also the tone, which I have never encountered before. All the wiring is original so there was no rerouting of any of it. Tried cleaning the compensators but that didn't change anything. I'm stumped.


Messages In This Thread
Adjusting the 66 compensators - by Jim Dutridge - 07-08-2013, 04:00 PM
RE: Adjusting the 66 compensators - by klondike98 - 07-08-2013, 05:22 PM
RE: Adjusting the 66 compensators - by klondike98 - 07-10-2013, 07:04 PM
RE: Adjusting the 66 compensators - by Jim Dutridge - 08-15-2013, 03:08 PM
RE: Adjusting the 66 compensators - by Arran - 08-16-2013, 07:46 PM
RE: Adjusting the 66 compensators - by klondike98 - 08-18-2013, 07:58 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
[split] New member...
Well, with the replacement tuning assembly, I have finally put the unit back together and aligned the dial.  The first s...HowardWoodard — 01:01 AM
Philco Model 16 wiring question
Well, finding a short is easy. Like I said, disconnect the transformer's secondary windings and see if it persists. If...morzh — 09:48 PM
Restoring Philco 96
Nice one!Stan the Man — 09:37 PM
Restoring Philco 96
I have eventually replaced the speaker and shot the video, which only shows the upper part of the dial as the hum is ver...morzh — 09:24 PM
Rogers Majestic R-646
Kinda weird to see both open Nothing weird if you remember that this radio is about 100 years old  :)Vlad95 — 07:49 PM
Philco 42-345 Restoration/Repair
I believe I'm making progress, resistors have been rechecked and corrected, removed that ugly blue capacitor and more wi...osanders0311 — 07:38 PM
Philco Model 16 wiring question
Thanks Morzh Yes I recapped everything and replaced almost all the resistors as well. I redid #99 with .015 safety ca...bobclausen — 07:11 PM
Philco Model 16 wiring question
Well...pull out every single load of the transformer. For every winding. Unsolder if needed. Then re-do your dim bulb....morzh — 07:02 PM
Rogers Majestic R-646
Kinda weird to see both open, but once you get it up and running, really pay attention to your sound. Listen for loud cr...TV MAN — 06:59 PM
Rogers Majestic R-646
Vlad; I was just reminded of something else, I'm not sure why but many Rogers built sets do seem to have open primari...Arran — 04:40 PM

[-]
Who's Online
There are currently no members online.

>