Don't forget about fluidic amplifiers. In 1968 an older engineer at
Huntsville told me to forget about transistors. They would soon be replaced
by fluidics. I wonder how much longer it is going to take.
Regards.
Max. K 4 O D S.
Email: [email protected]
Transistor site http://www.funwithtransistors.net
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----- Original Message -----
From: "J. Forster" <[email protected]>
To: "Neville Michie" <[email protected]>
Cc: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Saturday, January 09, 2010 5:59 PM
Subject: Re: [time-nuts] Non electrical time-nuttery
I don't think MagAmps were much used for logic, but Di-an made a family of
core logic that would certainly work for the counters in a clock.
-John
=============
No one has remembered the magnetic amplifiers (C1960) that were
considered reliable enough for control avionics.
Vacuum tubes and semiconductors were not considered reliable.
Back to the IC-less clock, I recently constructed a LED clock for a
TBolt.
To avoid the flicker effects and to get control of the LED intensity
I used BCD counters and
transistor drivers without multiplexing. BCD to hexadecimal was
arranged with diode decoding.
It looks half as big as the IC-less clock board with row after row of
transistors and resistors.
At least it will always show the correct time in a photograph.
cheers, Neville Michie
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