[Hammarlund] Speaking of Tubes ...

[Bob Camp]

Hi

Umm errrr … tubes were still actively being developed in the 1980 and 1990’s. Like for things that needed to handle a lot of power very fast. 

Bob

On Sep 30, 2014, at 11:13 PM, Guido Santacana <gsantacanav at gmail.com> wrote:

> I read somewhere years ago that they were developing ultrasmall tubes to be used in equipment that would survive a nuclear EMP. They were embedded into something like a microchip. Never heard from those again.
> 
> Guido Santacana
> 
> Sent from my iPad
> 
> On Sep 30, 2014, at 11:02 PM, Glen Zook <gzook at yahoo.com> wrote:
> 
>> There were some vacuum tubes, even smaller than a TO-18 transistor, that were being developed for extremely high frequency use.  However, I haven't heard anything about the project for several years.
>> 
>> Glen, K9STH 
>> 
>> Website: http://k9sth.net
>> 
>> 
>> On Tuesday, September 30, 2014 9:55 PM, Guido Santacana <gsantacanav at gmail.com> wrote:
>> 
>> 
>> What if... Solid state devices had not been invented back in the 50s. Tubes would have evolved into ....... Sub sub miniature tubes?
>> 
>> 73s
>> 
>> Guido Santacana KP4FAR
>> 
>> Sent from my iPad
>> 
>> On Sep 30, 2014, at 3:45 AM, "Ross Stenberg" <k9cox at charter.net> wrote:
>> 
>>> All of this talk about tubes (specifically low power receiving tubes) makes me understand why they were superseded by sold state devices nearly 50 years ago.
>>> 
>>> 73 Ross K9COX 
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