small valves

[Stan Barr]

Hi,

Arno Kletzander said:

> And don't forget the first generation of R/C receivers intended for use in
> model airplanes. They needed something small, lightweight, battery-powered
> and inexpensive, so voila - miniaturized valves. I can't claim to have seen
> one "in the flesh" yet, but I have a hobbyist book on what they used to call
> "micro-electronics" in the mid-50s (ooh, printed circuit boards instead of
> solder lug strips!) which shows a device about the size of a packet of
> cigarettes with several such valves directly soldered onto a board with the
> wires coming out of them.
> 
> Anybody here been R/C-ing back then?
> 

I saw them, but by the time I could afford r/c myself it was solid state.
I remember guys using valves and miniature hi-sensitivity relays to run
things like "Galloping Ghost" - a pwm proportional setup.
There were tuned reeds as well for multi-channel.

> 
> -- 
> Arno Kletzander
> Stud. Hilfskraft Informatik Sammlung Erlangen
> www.iser.uni-erlangen.de
> 
> +++ NEU: GMX DSL_Flatrate! Schon ab 14,99 EUR/Monat! +++
> 
> GMX Garantie: Surfen ohne Tempo-Limit! http://www.gmx.net/de/go/dsl


-- 
Cheers,
Stan Barr  stanb at dial.pipex.com

The future was never like this!