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

40-180 push button alignment
#1

After reading the alignment procedure given in the schematic and doing some soul searching i decided to try another approach and much simpler I might add. I only get three or four am stations in my locale during the day so I got a transistor radio put it one of the local station and proceeded to adj the tuning coil (rear of set) until I had the station then adjusted padder below that tuner and there it was, did same on all station and all worked well.
#2

Yes that method is a good one and I have used it for years. Most all stations are right on frequency, so you don't have to worry about having a super accurate signal generator using this method, the station does it for you.

Joe
#3

Thanks for the tip MM, I'll be doing that at some point on my 39-25.
#4

Yep. Since I didn't have a signal generator, I simply tuned another radio to the station I wanted, then started sweeping. More than one way to skin a cat...




Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 42-1008 conversion kit
I read about a kit to convert the variable speed changer in the Philco 42-1008 into a single speed unit.  That would rem...alangard — 09:30 PM
HiFi (Chifi) tube amp build - but my own design.
Tim Well...a chassis is metal. Magnetic or not, it does not matter. A transformer has some hum to it. It is natural....morzh — 08:40 PM
Shadow Meter Bulb
Ross I am not sure what current limiting effect the incandescent provides. They are two different parts of the sch...morzh — 08:31 PM
12' Philco
Bob Thanks for that photo. I have been looking for it, and I cannot find anythinmg on the web. I forgot it was here...morzh — 08:29 PM
Shadow Meter Bulb
I think after all has been said, I will use the same bulb that is specified for the dial pilot light which is a #55. I ...georgetownjohn — 07:31 PM
12' Philco
There was also this Philco! klondike98 — 07:25 PM
HiFi (Chifi) tube amp build - but my own design.
I expected a challenge and this is just part of it. But, it's also supposed to be fun, entertaining, informative and enj...TV MAN — 07:12 PM
Shadow Meter Bulb
Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM
HiFi (Chifi) tube amp build - but my own design.
Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo This is something alright. I'm go...RodB — 06:26 PM
HiFi (Chifi) tube amp build - but my own design.
:lol: We need to start a singing radio group! I play the guitar, so maybe get a few vocals? Anyways, Mike, I did try mou...TV MAN — 05:56 PM

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

>