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

Crosley 655 RF problems
#5

"You state that you "get strong IF oscillations from antenna to speaker". Do you mean that you injected a 450KHz signal with 400Hz modulation from a signal generator?" Yes.

"Does the oscillator section of the tuning cap have the same amount / size of plates as the RF section?" Yes. They are identical.

"You state that when measuring the grid voltage, the oscillator shuts down. Do you mean G1, the Osc grid on the 6A8, Pin 5". Yes, the oscillator grid.

The only difference I can see between my schematic and Terry's, is he eliminated 17b, a .02 mfd cap.


Messages In This Thread
Crosley 655 RF problems - by Patrick - 11-18-2023, 10:32 AM
RE: Crosley 655 RF problems - by Patrick - 12-12-2023, 09:33 AM
RE: Crosley 655 RF problems - by Radioroslyn - 12-12-2023, 11:52 AM
RE: Crosley 655 RF problems - by MrFixr55 - 12-13-2023, 10:47 PM
RE: Crosley 655 RF problems - by Patrick - 12-14-2023, 01:56 PM
RE: Crosley 655 RF problems - by Radioroslyn - 12-14-2023, 07:13 PM
RE: Crosley 655 RF problems - by Patrick - 12-14-2023, 10:42 PM
RE: Crosley 655 RF problems - by EdHolland - 12-15-2023, 04:41 PM
RE: Crosley 655 RF problems - by Radioroslyn - 12-15-2023, 08:10 PM
RE: Crosley 655 RF problems - by Patrick - 12-16-2023, 09:18 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Shadow Meter Bulb
Not sure if anyone has tried this but there are 6.3 volt miniature lamps in bayonet and screw-in base options available ...GarySP — 11:31 AM
Shadow Meter Bulb
Any 6.3 volt pilot light will work. I would use the brightest one I could find in my workroom. Be sure the dial is clean...RodB — 10:45 AM
HiFi (Chifi) tube amp build - but my own design.
Tim, nice write up and thanks for sharing !! Sincerely Richardradiorich — 02:47 AM
HiFi (Chifi) tube amp build - but my own design.
Well, this was a real "Hum-Dinger" :lol: ! This will be kinda long, but hopefully it will help others having t...TV MAN — 01:55 AM
Shadow Meter Bulb
Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM

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

>