Mechanical scanners?

[Gareth's Downstairs Computer]

Dabbling as I am with horology at the moment, I
wonder if there were any mechanical scanners, other
than those which successively activated Ledex switches?

What I am thinking might have been, is a pendulum
or platform escapement slowly advancing a tuning condenser.

[Gareth's Downstairs Computer]

Dabbling as I am with horology  at the moment, I
wonder if there were any mechanical scanners, other
than those which successively activated Ledex switches?
What I am thinking might have been, is a pendulum
or platform escapement slowly advancing a tuning condenser.

PS. Even clockwork toy trains had the means to engage
reverse when reaching the end of travel.

[Graham.]

On Sat, 7 Oct 2017 12:14:00 +0100, Gareth's Downstairs Computer
<***@yahoo.com> coalesced the vapors
of human experience into a viable and meaningful comprehension...

Post by Gareth's Downstairs Computer

Dabbling as I am with horology  at the moment, I
wonder if there were any mechanical scanners, other
than those which successively activated Ledex switches?
What I am thinking might have been, is a pendulum
or platform escapement slowly advancing a tuning condenser.

PS. Even clockwork toy trains had the means to engage
reverse when reaching the end of travel.

I had a Regonda Symphony radiogram that did that, and was able to
automatically stop on a station by monitoring the AGC voltage.

[Gareth's Downstairs Computer]

Post by Graham.
On Sat, 7 Oct 2017 12:14:00 +0100, Gareth's Downstairs Computer
of human experience into a viable and meaningful comprehension...

Post by Gareth's Downstairs Computer

Dabbling as I am with horology  at the moment, I
wonder if there were any mechanical scanners, other
than those which successively activated Ledex switches?
What I am thinking might have been, is a pendulum
or platform escapement slowly advancing a tuning condenser.

PS. Even clockwork toy trains had the means to engage
reverse when reaching the end of travel.

I had a Regonda Symphony radiogram that did that, and was able to
automatically stop on a station by monitoring the AGC voltage.

That's very interesting. Did you have to wind up the clockwork, or
was it electrically powered?

[Graham.]

On Sat, 7 Oct 2017 19:46:15 +0100, Gareth's Downstairs Computer
<***@yahoo.com> coalesced the vapors
of human experience into a viable and meaningful comprehension...

Post by Gareth's Downstairs Computer

Post by Graham.
On Sat, 7 Oct 2017 12:14:00 +0100, Gareth's Downstairs Computer
of human experience into a viable and meaningful comprehension...

Post by Gareth's Downstairs Computer

Dabbling as I am with horology  at the moment, I
wonder if there were any mechanical scanners, other
than those which successively activated Ledex switches?
What I am thinking might have been, is a pendulum
or platform escapement slowly advancing a tuning condenser.

PS. Even clockwork toy trains had the means to engage
reverse when reaching the end of travel.

I had a Regonda Symphony radiogram that did that, and was able to
automatically stop on a station by monitoring the AGC voltage.

That's very interesting. Did you have to wind up the clockwork, or
was it electrically powered?

dc brush motor I think.
Actually it looks as if my Symphony didn't have the auto tune, it was
its bigger brother the Rigonda Bolshoi that had it.

Here is a Usenet article discussing Regonda radiogrammes in which I go
all off topic and talk about 23 channel AM CB DX during 1968.

https://groups.google.com/d/msg/uk.tech.digital-tv/wEHNC_3MQDE/Dqoqi8rbGm4J