Re: 100W Audio Amplifier


Eeyore wrote:

"Michael A. Terrell" wrote:

Eeyore wrote:
"Michael A. Terrell" wrote:

Basic RADAR is less complex than a $10 B&W TV set. You send a pulse.
You receive a pulse, which is 'detecting'. You measure the delay for
"ranging'. To get relative position data you use a steerable antenna or
array. Its all been done by multiple groups for over 60 years. Adding a
microprocessor is no big deal. That has been done to almost anything
with electrons for almost 35 years.

Doing it with a resonant spiral scan system on the tube to keep the data in r,
theta coordinates was interesting though.

Not as much as the mechanical system that rotated the CRT. 400 Hz
Syncros at the antenna and display unit were used to keep them locked.
Considering what was available at the time, THAT WAS REAL ENGINEERING.

Yes, I've seen one of display units of that sort.

Precious little other way it could be done then for a PPI. I was stunned to discover
the concept was dreamt up in the late 30s IIRC.


Can you imagine the design review? YOU WANT TO DO WHAT?????????


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Relevant Pages

  • Re: 100W Audio Amplifier
    ... To get relative position data you use a steerable antenna or ... Its all been done by multiple groups for over 60 years. ... Not as much as the mechanical system that rotated the CRT. ... The first sign of insanity is denying that you're crazy. ...
    (sci.electronics.basics)
  • Re: 100W Audio Amplifier
    ... To get relative position data you use a steerable antenna or ... Not as much as the mechanical system that rotated the CRT. ... Syncros at the antenna and display unit were used to keep them locked. ...
    (sci.electronics.basics)