Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco Demonstrator
#1

Is anyone else out there familiar with something called a Philco
demonstrator besides me?
The Philco Demonstrator was a industrial Philco radio made into a large
breadboard for electronics instruction in High Schools and other educational purposes circa mid 1950's. I have a partial picture with
students troubleshooting one at Salem Vocational High School in
Salem, Mass my Electronics class in 1965. I just have to figure out how to load it to this site, can I do it through Flicker?


Messages In This Thread
Philco Demonstrator - by chris25260880 - 07-16-2012, 12:42 AM
RE: Philco Demonstrator - by Ron Ramirez - 07-16-2012, 05:29 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
I expected a challenge and this is just part of it. But, it's also supposed to be fun, entertaining, informative and enj...TV MAN — 07:12 PM
Shadow Meter Bulb
Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM
HiFi (Chifi) tube amp build - but my own design.
Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo This is something alright. I'm go...RodB — 06:26 PM
HiFi (Chifi) tube amp build - but my own design.
:lol: We need to start a singing radio group! I play the guitar, so maybe get a few vocals? Anyways, Mike, I did try mou...TV MAN — 05:56 PM
HiFi (Chifi) tube amp build - but my own design.
And so does a barber shop quartet. mmmmmmRodB — 03:54 PM
Shadow Meter Bulb
I did try an LED bulb in place of the original but wasn't impressed with the amount of light on the dial. Seems like it ...RodB — 03:51 PM
HiFi (Chifi) tube amp build - but my own design.
Tim Would mounting he transformer vertically change the hum, if used without additional parts? Also, in these amps...morzh — 02:25 PM
Shadow Meter Bulb
Gary I doubt it would introduce any noise. We use similar lamps for the panel indication, 12V AC lamps: they are LEDs...morzh — 02:15 PM
Shadow Meter Bulb
Not sure if anyone has tried this but there are 6.3 volt miniature lamps in bayonet and screw-in base options available ...GarySP — 11:31 AM
Shadow Meter Bulb
Any 6.3 volt pilot light will work. I would use the brightest one I could find in my workroom. Be sure the dial is clean...RodB — 10:45 AM

[-]
Who's Online
There are currently 5121 online users. [Complete List]
» 3 Member(s) | 5118 Guest(s)
AvatarAvatarAvatar

>