27 Feb
2012
27 Feb
'12
5:06 p.m.
On 2/27/2012 5:54 PM, Eric Smith wrote:
Ben.
ben wrote:
A quick scan leaves you wondering, is the broadcasting device (
mechanical camera)
tied to to the mains frequency. I found a good bit on the receivers, but
not on the cameras.
I think it goes back more to the spinning disk TV format from the late
30's.
http://www.tvhistory.tv/index.html Dig here for more history on TV
Even those had
to be synchronized to the broadcast, NOT to the mains
frequency.