Philco 66 - Sweet Music at Last!!
Posts: 190
Threads: 8
Joined: Oct 2005
City: Lexington, SC
The low voltage on the 75 tube may not be a concern. Check R28 and R29 anyway for large increase in resistance. Would expect a bias on G1 of the 75 tube's triode to be between -1 to -2 volts.
Should hear a loud hum when the finger touches the wiper of the volume control. Any DC voltage on the volume control is negative by a few volts from AVC action.
No mention of the oscillator. Normally should see -5 volts on G1 of the 6A7 tube if it is running.
Good you got the 42 tube bias circuit straighten out.
Messages In This Thread
RE: Philco 66 -Nothing - by rghines1 - 04-30-2012, 04:56 PM
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
Model 70 Cabinet Trim
|
| musar ,
Well if you have any more questions feel free to post away .
Sincerely Richardradiorich — 08:56 PM |
|
Model 70 Cabinet Trim
|
| Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM |
|
philcorepairbench.com - shadow-meter
|
| Thanks Ron.fenbach — 02:43 PM |
|
Model 70 Cabinet Trim
|
| Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM |
|
philco predicta
|
| Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM |
|
Model 70 Cabinet Trim
|
| Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM |
|
Model 70 Cabinet Trim
|
| How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM |
|
philco predicta
|
| Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM |
|
Philco model 38 code 121 not receiving signal.
|
| So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM |
|
462ron
|
|
It’s on the bottom of the homepage of our Philcoradio.com homepage!
Ron462ron — 07:20 AM |
|
Who's Online
|
There are currently 524 online users. [Complete List]
» 1 Member(s) | 523 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
