Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

No RF on 89
#10

Just went through every step on the "Correcting Intermittant Operation" page, with the exception of #8, which is "Oscillator Coil Impregnation".

Could that be the culprit? EVERY time I increase the tuning cap (to 1200 Khz, exactly), it quits oscillating, and I follow the same procedure of switching wave band switch to police, tuning cap to max unmeshed (which brings back oscillations), tuning cap BELOW 1200 Khz, and wave band back to BC, and it works.

Rotor shaft on tuning cap grounded throughout entire movement, wave band switch good, etc. etc.

Bottom line: quits oscillating at 1200 Khz.

I even changed my shirt, and had a different breakfast. Didn't help.


Messages In This Thread
No RF on 89 - by Patrick - 12-18-2020, 11:44 AM
RE: No RF on 89 - by RodB - 12-18-2020, 12:10 PM
RE: No RF on 89 - by Patrick - 12-18-2020, 12:52 PM
RE: No RF on 89 - by RodB - 12-18-2020, 01:07 PM
RE: No RF on 89 - by Patrick - 12-18-2020, 01:28 PM
RE: No RF on 89 - by Patrick - 12-18-2020, 01:42 PM
RE: No RF on 89 - by Radioroslyn - 12-18-2020, 06:39 PM
RE: No RF on 89 - by RodB - 12-18-2020, 07:13 PM
RE: No RF on 89 - by Patrick - 12-18-2020, 10:48 PM
RE: No RF on 89 - by Patrick - 12-20-2020, 10:15 AM
RE: No RF on 89 - by Patrick - 12-20-2020, 10:22 AM
RE: No RF on 89 - by Patrick - 12-20-2020, 10:50 AM
RE: No RF on 89 - by Steve Davis - 12-20-2020, 10:52 AM
RE: No RF on 89 - by Patrick - 12-20-2020, 11:54 AM
RE: No RF on 89 - by Patrick - 12-20-2020, 12:08 PM
RE: No RF on 89 - by RodB - 12-20-2020, 01:04 PM
RE: No RF on 89 - by 462ron - 12-21-2020, 08:16 AM
RE: No RF on 89 - by Patrick - 12-21-2020, 08:45 AM
RE: No RF on 89 - by Patrick - 12-21-2020, 10:07 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
All correct shields must be in place, all tubes correct no subs of any kind. Check any soldered, riveted ground conne...Chas — 01:24 PM
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM

[-]
Who's Online
There are currently 6250 online users. [Complete List]
» 2 Member(s) | 6248 Guest(s)
AvatarAvatar

>