Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Philco 118 alignment issue
#24

As Mike sez. These sets (not just philco) typically are difficult to get dead on and track (having the exact frequency across the whole tuning range). Was just servicing an Emerson 706 from 1952. Cute midget AA5 set. Had a bad 2nd IF transformer (open). Replaced it, all caps, and a burned up 50c5 socket (it fell apart). Aligned the IF and all was fine. The oscillator has one adjustment for the high end of the band (1.6mc). After setting the osc at 1.6mc I tuned in a local station at 1060kc (KYW). Dial is on 1100kc. If I move the osc to put KYW at 1060 now 1600kc is like 1670. So KYW resides at 1100kc.
http://www.radioatticarchives.com/radio.htm?radio=10277

Now if your dial discrepancy keeps you up at nite, you have a lot of time on your hands, and are not easily frustrated look at your tuning condenser. Do the end plates on the rotor have slots cut into them?? If so these can be bent to change the tracking at various points across the tuning range. You can try bending those a bit but you may find that it's just another trade off.

>Also I removed the oscillator coil yesterday and it looks ok
I don't think I've ever had an oscillator coil change inductance all by it self. Typically on Philcos and others it usually works or not. Mica caps are another story but your frequency offset isn't all that much to start ripping in to the micas.

GL
Terry


Messages In This Thread
Philco 118 alignment issue - by Tube Radio - 03-31-2016, 05:23 PM
RE: Philco 118 alignment issue - by KCMike - 03-31-2016, 06:58 PM
RE: Philco 118 alignment issue - by Tube Radio - 03-31-2016, 08:16 PM
RE: Philco 118 alignment issue - by Mondial - 03-31-2016, 08:30 PM
RE: Philco 118 alignment issue - by Tube Radio - 03-31-2016, 08:56 PM
RE: Philco 118 alignment issue - by Mondial - 03-31-2016, 11:02 PM
RE: Philco 118 alignment issue - by Tube Radio - 03-31-2016, 11:20 PM
RE: Philco 118 alignment issue - by Arran - 04-01-2016, 12:05 AM
RE: Philco 118 alignment issue - by Tube Radio - 04-01-2016, 12:54 AM
RE: Philco 118 alignment issue - by Mondial - 04-01-2016, 12:11 PM
RE: Philco 118 alignment issue - by Tube Radio - 04-01-2016, 12:57 PM
RE: Philco 118 alignment issue - by Mondial - 04-01-2016, 01:27 PM
RE: Philco 118 alignment issue - by gregb - 04-01-2016, 08:02 PM
RE: Philco 118 alignment issue - by Tube Radio - 04-02-2016, 01:57 AM
RE: Philco 118 alignment issue - by Tube Radio - 04-02-2016, 07:33 PM
RE: Philco 118 alignment issue - by Tube Radio - 05-31-2016, 04:35 PM
RE: Philco 118 alignment issue - by morzh - 05-31-2016, 07:19 PM
RE: Philco 118 alignment issue - by Tube Radio - 05-31-2016, 08:18 PM
RE: Philco 118 alignment issue - by Tube Radio - 06-02-2016, 02:56 PM
RE: Philco 118 alignment issue - by morzh - 06-02-2016, 05:24 PM
RE: Philco 118 alignment issue - by Tube Radio - 06-02-2016, 06:49 PM
RE: Philco 118 alignment issue - by Ron Ramirez - 06-09-2016, 09:38 PM
RE: Philco 118 alignment issue - by Tube Radio - 06-22-2016, 02:10 PM
RE: Philco 118 alignment issue - by Tube Radio - 09-21-2016, 07:53 AM
RE: Philco 118 alignment issue - by morzh - 09-21-2016, 07:55 AM
Philco 118 question - by Tube Radio - 06-09-2016, 10:56 AM
RE: Philco 118 question - by morzh - 06-09-2016, 11:26 AM
RE: Philco 118 question - by Radioroslyn - 06-09-2016, 12:07 PM
RE: Philco 118 question - by Tube Radio - 06-09-2016, 12:39 PM
RE: Philco 118 question - by morzh - 06-09-2016, 01:26 PM
RE: Philco 118 question - by Tube Radio - 06-09-2016, 01:59 PM
RE: Philco 118 question - by morzh - 06-09-2016, 02:37 PM
RE: Philco 118 question - by Tube Radio - 06-09-2016, 03:27 PM
RE: Philco 118 question - by morzh - 06-09-2016, 03:32 PM
RE: Philco 118 question - by Ron Ramirez - 06-09-2016, 06:12 PM
RE: Philco 118 question - by Tube Radio - 06-09-2016, 06:46 PM
RE: Philco 118 question - by morzh - 06-09-2016, 07:27 PM
RE: Philco 118 question - by Tube Radio - 06-09-2016, 07:32 PM
RE: Philco 118 question - by Ron Ramirez - 06-09-2016, 07:34 PM
RE: Philco 118 alignment issue - by Tube Radio - 06-09-2016, 10:06 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM

[-]
Who's Online
There are currently 1966 online users. [Complete List]
» 2 Member(s) | 1964 Guest(s)
AvatarAvatar

>