Big, Bad*s*, and ugly 660L
Posts: 7,296
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Restrung the cord for the arrow mask and started in on the SG voltage problem. After half a day of troubleshooting I found that I had installed a wrong value resistor. Now the screen buss is up to 75v. Hum was found to be a bad resistor over in the tone circuit. Also had an intermittent, volume would change all by it self. Was a bad connection at the ant post. Disassembled the spkr plug someone in the past did a bad job repairing the wiring. Cleaned it up evened up the wires and add some heat shrink tubing to give it a bit of strength. I was playing with it a bit and changed the value of #14 and it improved the high frequency response of the audio. Sound really good!
It's been playing for about 8hrs with out a problem. If I could only get that 42-854 to do the same!!! Waiting on a few small parts bulbs and such. Also want to do the SW/LW alignment BC and IF are good.
Currently It's playing Information Please, I always feel smarter after listening to it!
Terry
Messages In This Thread
RE: Big, Bad*s*, and ugly 660L - by Radioroslyn - 06-26-2016, 08:33 PM
Users browsing this thread: 2 Guest(s)
|
|
Recent Posts
|
|
My Philco 37-116 Restore
|
| Are you measuring relative to the centertap or the GND?morzh — 11:57 PM |
|
Philco 610B oscillator wiring
|
| Still not clear on the wiring interface between the 6A7 and oscillator. After refering to the available schematics and s...Tubester — 07:18 PM |
|
Refinishing Ideas
|
| My 37-116 code 121 is the best sounding radio i have...a daily driver. Since we are talking about "changes". ...poulsbobill — 07:18 PM |
|
My Philco 37-116 Restore
|
| Hello, I finally got brave enough to take the cans off the Expander Unit. Got the grid cap wires replaced and back toget...dconant — 06:50 PM |
|
Zenith H725
|
| I got into the first AM IF can today, and found its mica was cracked. Amazing that it was still working. This one makes ...EdHolland — 06:10 PM |
|
Philco model #20
|
| AHH HA , I got it and can’t thank you fellows enough , when I changed the capacitors I took the advice and did not unsol...onlyrick — 02:24 PM |
|
Zenith H725
|
| Hello Ed,
yes, I like letting projects run for few days to make sure they don't start acting up .
Sincerely Richardradiorich — 01:03 PM |
|
Philco 46-480 Electronic Restoration
|
| I am almost finished with this restoration. All which remains is the power transformer. I cleaned it up some time ago, b...jrblasde — 12:41 PM |
|
Philco model #20
|
| I seem to recall in some TRF sets there being a Local/Distance toggle switch that removes the B+ from the first 24 rf tu...RodB — 09:46 AM |
|
Refinishing Ideas
|
| Hi Doppelganger,
After rereading your thread, did you mount the Zenith speakers in the two bottom left and right pos...MrFixr55 — 09:39 AM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
