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

Old FM Band
#1

Greetings All,

I just put the finishing touches on a Philco 42-355. The question I have is about the old FM Broadcast Band. On a Philco dial scale for this model, and for others, the FM portion is only marked in channel numbers to go along with some sort of band plan from back then. What is the actual tuning range on the Philco that I have? I am able to get some FM broadcast stations but only from the bottom end of the current band, and that's at the top end of the old channel marked band. I know the old band was somewhere in the 50 mhz band, that's about all I can recall.

73 de,

Gary/N9VU
#2

Hi Gary,
There is an explanation on Phil's site of the old FM band assignments and the channel numbering scheme:
http://www.antiqueradio.org/philc05.htm

Carl
Northern Panhandle, WV
#3

Interesting that you can receive stations on the new FM band. The second harmonic of the oscillator must be mixing with the station signals. Makes me think that the RF tuning could be changed to the higher frequency and somewhat normal reception realized.... Icon_idea Icon_confused:

Kind regards,
Terry
http://home.comcast.net/~suptjud/
"Life is simpler when you plow around the stump."
#4

cwtravis Wrote:Hi Gary,
There is an explanation on Phil's site of the old FM band assignments and the channel numbering scheme:
http://www.antiqueradio.org/philc05.htm

Thanks Carl for the information.

73 de,

Gary/N9VU
#5

Terry Judkins Wrote:Interesting that you can receive stations on the new FM band. The second harmonic of the oscillator must be mixing with the station signals. Makes me think that the RF tuning could be changed to the higher frequency and somewhat normal reception realized.... Icon_idea Icon_confused:

Wow, a discovery by accident then? I was just about to realign the set, but maybe I should leave this modification alone and publish it, LOL.

73 de,

Gary/N9VU




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Vlad95, Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM
5U4 vs 5Z4 tubes
A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM
Philco 42-345 Restoration/Repair
Thanks Rod, "When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM
Philco 42-345 Restoration/Repair
Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM

[-]
Who's Online
There are currently 999 online users. [Complete List]
» 3 Member(s) | 996 Guest(s)
AvatarAvatarAvatar

>