Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Antique phonographs

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #31  
Old 03-26-2018, 12:02 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,758
RCA had a 33 LP record in 1932 not microgroove though and the depression killed it after intro. I. Can see why Sarnoff was livid.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote
  #32  
Old 03-26-2018, 04:37 PM
old_tv_nut's Avatar
old_tv_nut old_tv_nut is offline
See yourself on Color TV!
 
Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,184
Quote:
Originally Posted by Electronic M View Post
RCA had a 33 LP record in 1932 not microgroove though and the depression killed it after intro. I. Can see why Sarnoff was livid.
Was that a shellac disc, rather than vinyl? I could picture that dying with or without the depression due to low quality compared to 78s.
__________________
www.bretl.com
Old TV literature, New York World's Fair, and other miscellany
Reply With Quote
  #33  
Old 03-26-2018, 09:14 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,758
Quote:
Originally Posted by old_tv_nut View Post
Was that a shellac disc, rather than vinyl? I could picture that dying with or without the depression due to low quality compared to 78s.
From Wikipedia https://en.wikipedia.org/wiki/LP_record
Quote:
RCA Victor introduced an early version of a long-playing record for home use in September 1931. These "Program Transcription" discs, as Victor called them, played at ​33 1⁄3 rpm and used a somewhat finer and more closely spaced groove than typical 78s. They were to be played with a special "Chromium Orange" chrome-plated steel needle. The 10-inch discs, mostly used for popular and light classical music, were normally pressed in shellac, but the 12-inch discs, mostly used for "serious" classical music, were normally pressed in Victor's new vinyl-based Victrolac compound, which provided a much quieter playing surface. They could hold up to 15 minutes per side.
Had to look it up. I have a changer mech, but no records of that format. This is the same mech I have: https://www.youtube.com/watch?v=87P7xygDcs0
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote
  #34  
Old 03-26-2018, 11:53 PM
old_tv_nut's Avatar
old_tv_nut old_tv_nut is offline
See yourself on Color TV!
 
Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,184
Interesting.
__________________
www.bretl.com
Old TV literature, New York World's Fair, and other miscellany
Reply With Quote
  #35  
Old 03-27-2018, 02:12 PM
jr_tech's Avatar
jr_tech jr_tech is offline
VideoKarma Member
 
Join Date: Sep 2009
Posts: 4,510
Although these are called "program transcription" discs, they apparently are not the same as the transcription disks used by radio broadcasters, dating back to 1933:

https://en.m.wikipedia.org/wiki/Elec..._transcription

jr
Reply With Quote
Audiokarma
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 05:06 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.