Re: Oh my! Nostalgia!

Mar 20, 2007 4 Replies

and here we have a fine group i shall dub "the mu men" or "the mu-see-ums" ;-))



solid, easy to get along with and sensible, no foolishness with p-layer punch thru or bonding failures!



and tubes may actually be repaired too, nothing like those flimsy silicon flakes!



:-))


Oh my! Nostalgia!
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> Stumbled onto this site...
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> I built the FM3 and the PAS2 when I was a kid ;-)
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> ...Jim Thompson
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> | James E.Thompson, P.E. | mens |
> | Analog Innovations, Inc. | et |
> | Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
> | Phoenix, Arizona Voice:(480)460-2350 | |
> | E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
> |
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| 1962 |
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> America: Land of the Free, Because of the Brave

Tubes are for real men. When they fail, they often do so in a rather spectacular manner. Molten glass splattering about and all that.

Regards, Joerg http://www.analogconsultants.com

I've actually seen _tubes_ repaired. They were big metal-ceramic transmitting tubes, like 3CX15000Z. A little company in Louisiana (there must be a lot of them, scattered about) cuts a dead tube open on a lathe and installs a fresh cathode assembly, which includes a copper tube to connect to the vacuum pump. They also have glassblower's lathes for handling the old tubes, but I don't think any of those are still in service.

And just what tubes were those? Of the about about 1000 failed tubes that i have seen well over 95% were just filament / heater failures; and not one broken envelope except for two mechanical shock victims.

JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens.   --Schiller

Somewhere in my stuff i still have a pair of 4CX600Js. Someday i will want sockets and "chimneys" for them.

JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens.   --Schiller

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