TV kits was Re: Tek 555 was Re: Need pointers on Oscilloscopes

Tony Duell ard at p850ug1.demon.co.uk
Mon Jun 19 16:15:56 CDT 2006


> into
> > > a multi standard monitor (240, 405, 441, 625) for use with a PC based
> >
> > Presumably your radar CRT is electrostatically defiected, which makes
> > varying the scan rate a lot easier than if you were using electromagnetic
> > deflection.
> 
> Yes, the VCR97 is a 6" electrostaic deflection and focus CRT

Sure. It hadn't registered with me that you were using a VCR97 for this.

> > I found 'Newnes Televsion Handbook' in a second-hand bookshop a few years
> > back. I don't think they realised what it was, the price was pretty low.
> > It covers _only_ mechanically-scanend stuff....
> >
> A very lucky find! I recently got hold of some "television and shortwave"
> magazines from 1935 to 1939, which cover the late mechanical and early

Unfortunately, my oldest 'Practical Television' magaizes are from 1952, I 
think. I have about 3 years worth from then, then a large gap, another 3 
or 4 complete years in the early 70's, then another gap, then everything 
from the end of 1985 onwards (until a couple of months ago, when the 
editors changed, the new chap is, I believe termially clueless, so I've 
stopped wasting money on it...)

> electronic systems (the Baird 240 / EMI 405 competition and such like. There
> is also a lot of information on the development of the Scophony mechanicaly
> scanned 405 line receiver (I have one of the few remaining parts of a
> Scophony set, http://www.g1jbg.co.uk/tv1.htm)

Ooooh... A very nice find there...

-tony




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