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

Another 16B question: Alignment
#5

Brenda

Sorry, I missed this previously.

The back two screws that originally have the metal piece over them stamped "DO NOT ADJUST" are antenna trimmers for the 4th/5th band and for band 2.

Numbering the four trimmers, from front to back, we have:

1 - Band 4/5 oscillator, to be adjusted on band 4 at 10.8 mc and then checked on band 5 at 21.6 mc.
2 - "Police" band (band 2) oscillator, adjust at 3.6 mc.
3 - "Police" band (band 2) antenna, adjust at 3.6 mc. Bear in mind that this will affect the sensitivity of the set on the three lowest bands, so check for proper operation on all three after adjusting.
4 - Band 4/5 antenna, to be adjusted on band 4 at 10.8 mc and then checked on band 5 at 21.6 mc.

I trust you have the alignment procedure which outlines the adjustment of all trimmers save for the "Do not admit" trimmers?

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Another 16B question: Alignment - by BrendaAnnD - 01-17-2013, 01:05 AM
RE: Another 16B question: Alignment - by Ron Ramirez - 02-03-2013, 12:03 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
PT 6 chassis screws size???
Hello bridKarl, that sounds right or maybe 8/32 . Sincerely Richardradiorich — 01:00 AM
PT 6 chassis screws size???
Have this done except for missing chassis screws. It looks like 1 inch 6/32 sheet metal screw may work but can anyone s...bridkarl — 10:32 PM
Philco model 38 code 121 not receiving signal.
Hello Stormlord, Well done on rewinding that coil it turned fairly good for your first one. Sincerely Richardradiorich — 09:12 PM
Philco model 38 code 121 not receiving signal.
Well here it is. It ain't pretty, but hopefully it'll work. I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM

[-]
Who's Online
There are currently 745 online users. [Complete List]
» 1 Member(s) | 744 Guest(s)
Avatar

>