Quote:
Originally Posted by etype2
Motorola did develop a tiny 1 inch working prototype TV in the same year, 1966. This and the fact that in 1966 the Intertel Corporation developed a working two sided flat 6 inch color CRT supported my belief. See the previous page for two photos of that working prototype. Also in 1966, Sir Ian Sinclair demonstrated their 1 1/2 inch Micro TV. It seems 1966 was a banner year for tiny televisions. So yes, very possibly in 1961 a working miniature TV could have been possible behind the scene because 5 years later we have at least three working prototypes and in 1970 the Panasonic TR-001 1 1/2 inch TV was introduced.
See photo of Motorola 1966 working prototype 1 inch TV: http://www.taschenfernseher.de/doku/motorola1966.jpg |
FWIW, my take on these demonstrations...
1. I believe the 1966 Motorola prototype existed...a talented Engineer with the skill of a watchmaker could have built something like that. About the same time frame, an engineer that I knew built a tiny battery powered oscilloscope that worked, using a 3/4 inch diameter electrostatic CRT.
2. I believe the 1966 Sinclair demo, again a conventional electrostatic deflection monochrome crt and fairly conventional circuitry. A real product followed shortly.
3. Of course the 1970 monochrome Panasonic was a real product and even contained an IC to reduce the amount of discrete circuitry, as well as a conventional design magnetic deflection CRT.
4. At that time, all of the above would have been fairly simple exercises compared to making a flat CRT for a tiny TV set, and color would add extreme complexity to the design. I believe the 1966 Intertel set "pictured" on magazine covers was nothing more than a mock-up.
5. Perhaps in the mid 80s, Sanyo came close to introducing a beam index "lollipop" CRT color set, but I think by that time sets with color LCDs close to becoming a reality...it was simply too little / too late for that product.
Just my 2 cents,
jr