On 10/02/2018 10:06 AM, Paul W9AC Christensen wrote:
"IMHO uPC hardware to control a QRO tube amplifier is anathema and only
works when executed adroitly and with a whole bunch of design provisos and
inbuilt protections to make the scheme robustly bulletproof."
I don't have a dog in this fight, but I do not see what is wrong with
simple "RTL logic" for control and monitoring when done properly, it is
a scheme that cannot become obsolete, also it can be serviced by anyone
with an understanding of simple logic, forever.
As a retired broadcast transmitter supervisor that repaired both kinds
of systems the differences (other than on the showroom floor) is:
incorrect factory advice only with CPU controlled amplifiers
and
$2,000 brain board (exchange) charges because one IC went bad
only with CPU controlled amplifiers
RTL is resistor transistor logic. (including Op-Amps)
--
Ron KA4INM - Youvan's corollary:
Every action results in unwanted side effects.
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|