Restoring a 46-1226 Code 125
Posts: 348
Threads: 48
Joined: Oct 2013
City: Tioga, Texas, USA
OK, I found the problem - it was a solder splash, probably my own fault. I removed the solder splash then looked at distortion as I turned the volume up. With the original 6K6 tubes in the output stage there was inadequate volume at maximum and replacing the 6K6 tubes with 6V6GT tubes cured the low volume. It now has adequate volume range. I also found that the B+ filtering was inadequate and added a 40uF @ 450VDC to the B+ source that has the orange wire as a distribution bus. That removed the residual hum and it sounds quite nice now.
Now I get to re-install the chassis in the cabinet once again and see how it sounds.
Joe
Messages In This Thread
RE: Restoring a 46-1226 Code 125 - by Joeztech - 01-12-2018, 01:44 PM
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
1949 Motorola 5A9M
|
| bob
Nice work on battery . If you don't. Have terminals i have a few spares
Samsam — 02:12 AM |
|
1949 Motorola 5A9M
|
| hello mr Fixr,
for sure !!
I have some radios that I need to make some batteries for too.
Sincerely richardradiorich — 12:33 AM |
|
1949 Motorola 5A9M
|
| Dittos, sweet b on the battery. Love the "9 Lives" logo, remembered from my childhood. Other neat ones are t...MrFixr55 — 11:24 PM |
|
Philco 46-1209 strange behavior
|
| Hi Morzh,
Dunno if the AC EMI caps are an issue. I never liked the concept but never had an issue with these causin...MrFixr55 — 11:21 PM |
|
Philco 46-1209 strange behavior
|
| And no hum without the 7AF7? Not common but I am thinking heater - cathode short. This would introduce hum in this sta...MrFixr55 — 11:14 PM |
|
schematics
|
| Those filter caps in the cardboard tube are easy to restuff, especially the kind with the rolled over end. You don't hav...Arran — 09:56 PM |
|
Philco Model 16 wiring question
|
| If you have 5 wires, do this:
The wires that go to thick-wire wound winding are the filament.
If you do not know wha...morzh — 09:03 PM |
|
Philco Model 16 wiring question
|
|
I recently acquired a Philco Model 16 Code 126. I removed the power transformer to place heat shrink on some very bad...bobclausen — 08:23 PM |
|
1949 Motorola 5A9M
|
| Hello Bob,
That battery looks great nice job !
Sincerely Richardradiorich — 08:20 PM |
|
1949 Motorola 5A9M
|
| Yes, I plan to put a Velcro closer on the top.klondike98 — 07:28 PM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
