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

Philco 42-355 speaker and field coil replacement
#8

On Chuck Schwark's web site there is a link to a design for a converter that will down-convert today's FM to the old FM band. It will only convert one half of the new band at a time, because the new band is about twice as wide as the old one. You can select whether you want the upper or lower part of the band.

I think this device goes between the actual antenna and the antenna terminals on the radio, so he radio is always receiving to old lower frequency band. You run it off a nine volt battery, IIRC.

There are other designs on the web that do the same thing, some more complex than others. I don't think these are kits, so you build them from scratch based on the schematic. You might also need to wind your own coils.

I have an FM to AM converter from a car. I thought about hooking it up, but none of my radios have a phono plug, which is what you would need. I'd also need a 12 volt power supply. When I found out about SSTran it just seemed simpler to do it that way. Plus I can hook up a CD player or a computer and listen to those sources, not just FM.

John Honeycutt





Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Rogers Majestic R-646
You can bypass the interstage transformer by disconnecting the primary, connect a load resistor of about 10k - 20k to th...RodB — 09:40 AM
HiFi (Chifi) tube amp build - but my own design.
So, here's Prince on stage halfway through Purple Rain when he stoops down to his tech and says "Rod, pull out that...RodB — 09:17 AM
Rogers Majestic R-646
Today I finished inspecting all the parts. The result is not very pleasing. The first positive news: 1) The power tr...Vlad95 — 11:40 PM
HiFi (Chifi) tube amp build - but my own design.
Well, found muh culprit. After using socket test adapters and finding voltages all ok, swapping 6V6s, no avail, swapped ...TV MAN — 11:18 PM
HiFi (Chifi) tube amp build - but my own design.
Well, maybe - maybe not  :lol: It's been an interesting project so far! Something so simple, yet so cranky. The 1st one ...TV MAN — 05:12 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteres in a while  https://www.radionostalgia.ca/lib/Images/battery/us/burgess1D.jpgi ...Vlad95 — 03:50 PM
Philco Model 16 wiring question
Measure the voltages first, just in case.morzh — 02:19 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteries in a while Mr. Fixer. Boston Edison always used Burgess in their Bright Star yellow...Paul Philco322 — 02:17 PM
1949 Motorola 5A9M
Thanks Sam. I'll let you know. I can probably scare some up from the local radio club.klondike98 — 02:07 PM
Philco 89 Code 123 Osc Coil
Hello,  I thought I would post my findings on my bad oscillator tickler coil. There were 27 turns on the outer coil b...dconant — 12:38 PM

[-]
Who's Online
There are currently 922 online users. [Complete List]
» 3 Member(s) | 919 Guest(s)
AvatarAvatarAvatar

>