Ancient wireless remote

[Trevor Wilson]

WOW! I had never seen one of these in more than 40 years servicing audio
gear:

http://www.audio-extasa.eu/akai-rc70-remote-control-unit-p-1092.html

Imagine my suprise after refurbishing the battery contacts and pressing
the buttons. The damned thing uses a xenon flash tube and a germanium
transistor as part of the HT power supply. Bugger me, it still works
fine though.

I located the schematics if anyone is interested.

--
Trevor Wilson www.rageaudio.com.au

 

I recall when I was a little kid, a rich uncle and aunt had a TV with
remote control. In those days, the TV used big rotary switches to change
channel. So it had a stepper motor to turn it, and was quite loud
and clunky.

 

[Rod Speed]

"Clocky" <notgonn@happen.com> wrote in message
news:540be9fa$0$29973$c3e8da3$5496439d@news.astraweb.com...

On 7/09/2014 10:26 AM, bruce56@topmail.co.nz wrote:
I recall when I was a little kid, a rich uncle and aunt had a TV with
remote control. In those days, the TV used big rotary switches to change
channel. So it had a stepper motor to turn it, and was quite loud
and clunky.



I remember once back in the early 80's we were staying in an old 30's era
rental whilst our house was getting built and there was an old, large BW
valve TV in a room that had been deemed unsafe to use due to unstable
flooring.

It had a long cord attached which had something that looked like a remote
with buttons (IIRC also for channel select), a volume control and a
speaker which was for remote listening (under pillow?)

Hospitals have those, because not everyone is watching the same program.

It was kinda shaped like those devices used in hospitals to buzz the
nurse.

Anyway, the TV didn't work but it was a remote of sorts.

 

[Clocky]

On 7/09/2014 10:26 AM, bruce56@topmail.co.nz wrote:

I recall when I was a little kid, a rich uncle and aunt had a TV with
remote control. In those days, the TV used big rotary switches to change
channel. So it had a stepper motor to turn it, and was quite loud
and clunky.

I remember once back in the early 80's we were staying in an old 30's
era rental whilst our house was getting built and there was an old,
large BW valve TV in a room that had been deemed unsafe to use due to
unstable flooring.

It had a long cord attached which had something that looked like a
remote with buttons (IIRC also for channel select), a volume control and
a speaker which was for remote listening (under pillow?)

It was kinda shaped like those devices used in hospitals to buzz the nurse.

Anyway, the TV didn't work but it was a remote of sorts.

 

[keithr]

On 28/08/2014 2:32 PM, Trevor Wilson wrote:

WOW! I had never seen one of these in more than 40 years servicing audio
gear:

http://www.audio-extasa.eu/akai-rc70-remote-control-unit-p-1092.html

Imagine my suprise after refurbishing the battery contacts and pressing
the buttons. The damned thing uses a xenon flash tube and a germanium
transistor as part of the HT power supply. Bugger me, it still works
fine though.

I located the schematics if anyone is interested.

I liked the old acoustic ones. Wandering round the local David Jones TV
department jingling a bunch of keys and seeing the TVs randomly changed
channel filled in time while the wife was shopping.

 

[Gary R. Schmidt]

On 7/09/2014 12:26 PM, bruce56@topmail.co.nz wrote:

I recall when I was a little kid, a rich uncle and aunt had a TV with
remote control. In those days, the TV used big rotary switches to change
channel. So it had a stepper motor to turn it, and was quite loud
and clunky.

We had a motor-driven remote control teevee back in the 1960's, it was a
Kriesler, with a very boomy speaker underneath, and the stations were
indicated by three rows of lights.

No rotary dial, there were UP and DOWN buttons on the panel.

You pushed the right-hand side of a rocker switch to go up the channels,
and the left top go down. It would wrap around from 15 ISTR to 0, and
there was also 4a and 5a.

I remember once when it was being repaired, presumably a valve had
failed, the repairman showed me how the "active" stations were set by
moving a selector for each one from "off" to "on".

And there were two(!) sockets for earplugs on the remote unit itself.

Cheers,
Gary B-)

--
When men talk to their friends, they insult each other.
They don't really mean it.
When women talk to their friends, they compliment each other.
They don't mean it either.