Chinese Tires Are Ordered Recalled

"Gary Heston" > wrote in message
> I was told several years ago (ok, at least 20 years ago) that the original
> electronics in the MIG-25 were vacuum-tube based for exactly that reason.
>
>> But in Russia or China, smaller military budgets and presence of vacuum
>>tube manufacturing plants could make them prefer more-antique electronics
>>as a way to reduce EMP vulnerability.
>
> Consider also the difference in manufacturing technology required for
> producing vacuum tubes and semiconductors--the tubes are basically
> complex light bulbs and don't require massive clean rooms, tons of toxic
> chemicals and nanometer-precise optical equipment. Building tubes is
> _easy_, building high-power semiconductors is very difficult and
> expensive.
> So what if they take a little more power? That's easier to make than a
> semiconductor fabrication facility.
>
>
> Gary

I have heard the same thing, Gary. These were the miniature "peanut" tubes,
IIRC, which we used for a while here in the USA for portable radios, etc.

anumber1 > in
:

> I have vacuum tube rectifiers (for the old 1950s electronics that I
> restore for fun) that are made in China. They are marked "Made in Chian

looks like a minor misspelling of "Made in Chains"