Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Philco BOL Demo Record
#1

Hey Folks - wanted to share what the circa 1941 Philco Beam of Light Demo record sounds like! Yes I get the irony that it is playing on my 1922 Victrola - but as soon as I get my 42-1010 up and running I'll post one of it playing on a BOL changer as it should!- Andy

Side 1:
[Video: https://www.youtube.com/watch?v=RIK07kreEDI&t=15s]

Link to side 2 is in the video description.

Andy Sorrell
Palmyra, Virginia
#2

Very Jealous but that record is not meant for the cactus needle...The head is 3x the weight of the BOL head...
Did I say jealous..

Kirk

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
#3
Photo 

Just found this in a July 1940 Philco Serviceman - so I wanted to share.    

Andy Sorrell
Palmyra, Virginia
#4

Since I've never seen or heard one of these work, how do they sound? Were photo cells sensitive enough to reproduce the fine variations in light? They certainly worked for the sound of movies. Is the resistance to twisting of the crystal far greater than overcoming the inertia of the rod and mirror? Just wondering if this was more gimmick than real advantage!
#5

Thanks Andy, neat find!




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

[-]
Who's Online
There are currently 2195 online users. [Complete List]
» 1 Member(s) | 2194 Guest(s)
Avatar

>