My 4th and 5th Lumbar discs have a special relationship with a
particular airborne radar B-band Coaxitron assembly that had mason
jar sized tetrode and triode piggybacked inside and was full of FC-77
coolant.

At 02:55 PM 1/18/2012, Inge wrote:
>Remember HP's frequency counter, big as a washing machine, inside
>full of electron tubes, outside panel filled with Nixie tubes..
>How many out there know what Wademecum was? I regreat I didn't save
>a set.of them. Sylvania, RCA, Mullard, Valvo, Telefunken, Osram,
>Philips, Siemens, name them all..
>
>I'll tell you a true story. Raytheon people, if any, may
>remember.  We had left electron tubes far behind. A modern nose
>radar used ICs, transistors, triacs and all other modern stuff. A
>MIG hit the ground somewhere and the US air force got it from a
>allied for analysis of the technical level, especially the nose
>radar. We were invited too. The radar was BIG, technical expertize
>marvelled. The equipment was taken out and was dismantled. All of
>them just stared and stared again. They hoped to see the newest of
>Sovjet's technology, but this nose radar was full of electron tubes.
>Mini tubes. Hundreds! Not a single micro circuit. Guess why...
>Inge
>
>
>----- Original Message ----- From: "Stadem, Richard D." <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Wednesday, January 18, 2012 7:42 PM
>Subject: Re: [TN] What is the future of electronics assembly?
>
>
>>Yes, I remember while working at Stark Electronics in the 70's that
>>when the transistors and ICs were starting to become more popular,
>>all of a sudden the old electron tubes became smaller, better
>>quality and much cheaper. Part numbers like Sylvania 6AU6, 6AY11,
>>12DF7, etc. start coming back to me, and I remember which ones were
>>power supply, filter, and amplifier tubes.
>>And my old tube amps always did have a much better tonal quality to
>>them than any transistor amp ever did.
>>Even up until just recently, the very best hi-end audio amplifiers
>>such as Bel Canto still used tubes, albeit cutting edge, not
>>yesterday's technology.
>>I had a chance to listen to Maria Callas singing through a Bel
>>Canto system recently, while there on business. My wife and her
>>sister were with me. They both started crying, the music was so
>>beautiful. Both of them were trained singers, and they know a good
>>sound system when they hear it.
>>
>>So, yes, there will always be a market for today's electronics,
>>just as there is still a market for yesterday's, because some
>>things simply cannot be easily improved.
>>
>>
>>-----Original Message-----
>>From: TechNet [mailto:[log in to unmask]] On Behalf Of Ahne Oosterhof
>>Sent: Wednesday, January 18, 2012 11:54 AM
>>To: [log in to unmask]
>>Subject: Re: [TN] What is the future of electronics assembly?
>>
>>Yes, at some point in time the present day  technologies will be
>>replaced by new ones. But the new ones have not really shown
>>themselves clearly yet.
>>When looking at past changes I have noticed that old technologies
>>kind of go through a revival stage when the new ones show up. As an
>>example, CRTs improved noticeably when flat panel displays started
>>to pop up, but are now essentially gone. Vacuum tubes became
>>smaller, as in nuvistors, but transistors won.
>>Can we expect some noticeable improvements in today's assembly and
>>packaging processes before they will also be delegated to the dustbins of time?
>>
>>
>>Ahne.
>>
>>
>>-----Original Message-----
>>From: TechNet [mailto:[log in to unmask]] On Behalf Of Pete
>>Sent: 18 January, 2012 7:11 AM
>>To: [log in to unmask]
>>Subject: Re: [TN] What is the future of electronics assembly?
>>
>>Interesting discussion indeed.  I see a lot of predictions about
>>the need for legacy work, which will keep people employed.  But
>>it's the leading edge, new technologies that will make up the bulk
>>of the bulk of the work, and profit.
>>
>>As a PCB designer, I have to approach this from a different
>>perspective. I know how to design for the current technology, but
>>once it's designed, there's not much legacy work I can count
>>on.  How do I design for Occam? Or the next idea?  Nano technology
>>and graphene could completely change the
>>component/solder/copper/laminate structure.  PCB design could
>>become more like IC design.  I don't want to be the guy justy
>>hanging on to old tech, I want to be learning and implementing the
>>latest and greatest.
>>
>>If I'm not one of the ones ready to understand and design the new
>>technology, I'll be one of the youngest Wal-Mart greeters in the store.
>>
>>Pete
>>
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