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

Philco 37-116 Band #2 Oscillator coil repair
#1

Hello everyone, I decided a few weeks ago to tackle the open band #2 oscillator coil on my other Philco 37-116 chassis. I wasn't looking forward to taking apart the RF unit but it had to be done. I tested the oscillator coil previously and it had continuity from 1-2, 2-3, 3-4 but open from 4-5 which meant the primary windings were good and secondary was bad. I remember when Phorum member Rfeenstra restoring a 37-116 chassis he had back in 2019 and he showed how he rewound his open band #2 oscillator coil--I looked at how he did it and rewound my secondary winding on my coil. I used #36 AWG copper enameled wire and rewound the secondary using 12 turns of wire--- I counted 11 turns but added an extra turn just in case I didn't have enough range on the adjustment trimmers. I recoated the windings with wax and installed the coil and reinstalled the RF deck in the chassis. I then retested the chassis holding my breath as I haven't rewound an oscillator coil successfully before and wasn't sure it would work. I was very surprised not only did it work on band 2 but I was able to align it at both ends of the band and no oscillator dropouts anywhere on the band--CHU on 3.330 MHz, WWV on 2.5 MHz and my local station on 1.6 MHz (1600 KHz) were on the correct spots on the dial. I thought I would let everyone know just in case they have a band 2 oscillator that they need to rewind.   Ken


Attached Files Image(s)
   


Messages In This Thread
Philco 37-116 Band #2 Oscillator coil repair - by Kenradio - 01-05-2022, 08:15 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco model 38 code 121 not receiving signal.
Congrats on your success Stormlord. My rough guess is that since both the 15 and the 1A6 are supposed to be shielded, I...MrFixr55 — 10:04 PM
The list of my radio & TV collection!
A little light Saturday positive about our hobby in our feed... My new every Saturday video about antique radio equipme...RadioSvit — 02:12 PM
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. But I can't find those articles.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

[-]
Who's Online
There are currently no members online.

>