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

67 mustang Philco model 7TPZ
#1

Hi all! In my search for a working model to place in my Mustang, I have ended
up with a few of these radios now. One of which I now have working. My question is,
on one of the radios the tuner buttons work fine and moves the indicator but when
I attempt to manually tune using the dial, it just spins and does not engage to allow tuning.
Does any one ( and I am sure someone here does) know how the mechanism engages? Any one have a schematic?
Also, does anyone know where to find a set of knobs for these radios? Thanks so much and what a fascinating
forum. It has really gotten me interested in these older radios.
#2

There is a small clutch between the manual tuning and the tuning mechanism. The clutch is normally engaged. When any button is pushed, a slide bar disengages the clutch so the manual tuning does not load the buttons and the knob does not spin. The clutch is either dirty or out of adjustment. Just examine it and the problem should be obvious. Clean with alcohol and/or adjust by moving the stationary disc closer to the pressure disc.
#3

Quite offen I find the needle assemby is the problem, clean and lube the the shaft controling this , BILL
#4

Thanks for the responses. What I finally figured out is that the gear assembly that passes through the pressure plate was broken. This allowed the gear to spin freely without moving the pressure plate so no force was put on the rubber washer. I was able to glue the two together and now it holds and allows the pressure to be transmitted to the tuning mechanism allowing it to work. Hope this helps someone as I now have a few of these radios and it seems to be a common problem. Thanks again for the replys!




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM
B&K 1077B no video
Thanks Rich! I'll take a look and see what he has. I know there's more modern equipment to be had, but this one I know a...TV MAN — 09:11 PM
B&K 1077B no video
Hello Tim, Here is a link to restoration of one on Phil's old radios site ! Sincerely Richard bk1077bradiorich — 09:01 PM
6TPZ and 5TPO Radio Help
I'm a little befuddled on this one. Should X5 and X4 be tied together like this?  It looks like someone added this at so...R3Sons — 07:33 PM

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

>