1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

Linear Mode
40-190 image tuning, need help
Ron Ramirez
Silent Key
*****
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#4

09-30-2007, 11:08 AM
I would take a serious look at that 2nd IF transformer (37). I would bet it is faulty, since you are unable to peak its trimmer at 455 kc. Bear in mind also that the AVC filter network (37B, 37C & 37D) are inside the IF can.

Many different 1940 or 1941 Philco chassis will yield the IF can you need to replace it; just be sure the replacement can has the AVC filter network inside. I see 40-150/155/180/185/190 chassis on eBay frequently, as well as 1941 model 41-250/255/280/285/287/290/296 chassis.

Once replaced, realign your radio for a 455 KC IF.

Good luck.
--
Ron Ramirez
Ferdinand IN
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
40-190 image tuning, need help - by BDM - 09-27-2007, 10:56 PM
[No subject] - by rickd - 09-28-2007, 09:36 PM
[No subject] - by BDM - 09-29-2007, 12:14 AM
[No subject] - by Ron Ramirez - 09-30-2007, 11:08 AM
[No subject] - by BDM - 09-30-2007, 02:47 PM



Users browsing this thread:
[-]
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 572 online users. [Complete List]
» 1 Member(s) | 571 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration