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

Open I.F coil
#2

Hi Alan,
Well there's a few choices. Hunt down a 465kc IF output transformer, try Play Things of the Past. Back in the day there where companies that make replacement IF transformers. Or If you have a slug tuned 455kc can you can use it but you'll need to open it up and change the value of the internal tuning caps to get it to resonate at 465kc. Or you could use a rf choke in place of the secondary coil and a small cap connected to the plate of the IF amp tube to coule the signal over to the diode plate. This will make the if rather broad and will loose some gain.
Some of the older Philcos have 460kc if cans you maybe able the get one to go up to 465

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
Open I.F coil - by lasurveyor - 08-01-2016, 09:41 PM
RE: Open I.F coil - by Radioroslyn - 08-01-2016, 11:29 PM
RE: Open I.F coil - by lasurveyor - 08-01-2016, 11:52 PM
RE: Open I.F coil - by Radioroslyn - 08-02-2016, 12:14 AM
RE: Open I.F coil - by kc5gym - 08-11-2016, 07:28 AM
RE: Open I.F coil - by lasurveyor - 08-11-2016, 11:09 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Model 70 Cabinet Trim
Steve might have some trim left. Not sure he is making anything.morzh — 06:12 AM

[-]
Who's Online
There are currently 550 online users. [Complete List]
» 2 Member(s) | 548 Guest(s)
AvatarAvatar

>