"Dave Plowman (News)" wrote:

In article ,
Michael A. Terrell wrote:
Indeed - and the pro audio lot certainly didn't use the name 'phantom'
for the first line powered mics. That was called AB or T power.

Ever seen a phantom phone line? If anyone has the right to claim the
name, it is Western Electric.

A phantom circuit is a different thing. Usually only used in desperation
as the quality isn't as good as the discrete pairs. Other problems with it
too.


Have you ever used a real WE designed phantom phone line? The quality
was only dependent on the frequency response of the special phantom
transformers, and how good the support pairs were. Properly installed,
you couldn't tell the difference. If you phantomed already bad pairs,
you got the noise and hum from both bad pairs.

Desperation? How about: "It was developed to provide telephone
service where it was impossible to run new lines."


Have you ever used 100 miles of old telephone trunkline for a network
feed at a remote radio station? Or, in a pinch, connected a spare audio
console directly to a phone line to do and emergency live remote feed to
the station?


Did Western Electric invent it?


Who do you think invented it?


--
And another motherboard bites the dust!