1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Threaded Mode
Intermediate Frequency Adjustment ?
KCMike
Phorum Expert
*****
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
#1

10-08-2013, 08:09 PM
I'am preparing to adjust the I.F.s on my philco model 144. Reading the procedure it doesn't say if you should do them in the order of 1st,2nd&3rd. Is that the order I should use?
Thanks
Find
BrendaAnnD
Phorum Expert
*****
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma State, Province, Country: Washington
#2

10-08-2013, 08:15 PM
Most of the alignment literature I've seen suggests that you do them in reverse order. I'm assuming this is so that the detector can be more precisely aligned. In practice, I've not found there to be any real difference, as long as you keep turning down the generator output as you get a peak, so you're not overdriving and causing the AGC to act.
Find
KCMike
Phorum Expert
*****
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
#3

10-08-2013, 08:39 PM
Thank you Brenda. I have seen some alignment videos on line. I believe for the philco 630b and it mentioned an order but my instructions only said adjust each I.F. in turn. Wasn't sure what" in turn " exactly meant. I will try the reverse order.
Find
« Next Oldest | Next Newest »




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Correct model 84 Ac plug an cord type
From what I read Philco went to using brown rubber power cords in 1936, so cloth was used in the 1935 and earlier models...Arran — 11:25 PM
Correct model 84 Ac plug an cord type
Hi Bruce, I have not worked on an 84, but in general, power cords for almost any radio prior to 1938 was cloth covered...MrFixr55 — 08:34 PM
Restoring Philco 38-14
OK, well, so after staring at the sch again, I realized the problem had to be the #12/12A padder. I put a scope on the o...morzh — 08:15 PM
Correct model 84 Ac plug an cord type
Hello Bruce, I mostly use brown far as my cloth powercords go ! Here is the plug that I have used bakelite Acorn style...radiorich — 08:05 PM
Correct model 84 Ac plug an cord type
Looking for as correct as can find the right Ac plug an the correct colored cloth line. Ive seen many old photos but mos...Bruce — 04:13 PM
Restoring Philco 38-14
Rod Two Y-caps make sense if you use them from L/N to the chassis; this is only makes sense in the transformer radios...morzh — 10:11 AM
Restoring Philco 38-14
Mike, I'm curious about a specific use of he Y cap. Lately I've seen a single cap across the power transformer primary. ...RodB — 09:01 AM
Restoring Philco 38-14
hello morzh , That sounds like a plan ! Sincerely Richardradiorich — 07:45 AM
Restoring Philco 38-14
Richard, It helped some, but I still had the whining when engaging the rear power strip (I did not realize it was fro...morzh — 07:07 AM
Restoring Philco 38-14
Hello morzh, Yes , that dreaded hum in my room where i do alighment I have my cable modem and router plus desktop plus ...radiorich — 11:25 PM

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

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration