I think you mean miniature tubes. Sub-miniature tubes were used in a few
small battery portables but didn't catch on. They were used extensively in
hearing aids, though.

--
Jim Mueller

To get my real email address, replace wrongname with eportiz. Then replace
nospam with sacbeemail.

"J Ventry-McGee" wrote in message
...
Hmm, 1946. This must be one of the first postwar models to use
subminiature tubes.

I'm curious, what is the first consumer radio to use all subminiature
tubes?


Best,


Jeremiah

In article ,
"Jim Mueller" wrote:

I think you mean miniature tubes. Sub-miniature tubes were used in a few
small battery portables but didn't catch on. They were used extensively in
hearing aids, though.

And I think they were used even more extensively in airborne military
computers.


Regards,

John Byrns

--
Surf my web pages at, http://fmamradios.com/

John Byrns wrote:
In article ,
"Jim Mueller" wrote:

I think you mean miniature tubes. Sub-miniature tubes were used in a few
small battery portables but didn't catch on. They were used extensively in
hearing aids, though.

I don't think it is strictly a matter of them not catching on. They became
commercially affordable right about the same time as transistors. They didn't
stand a chance.


And I think they were used even more extensively in airborne military
computers.

They also showed up in main frame computers. Somewhere I have some cards
that came from some computer that used a staggering number of the wee beasties.

CK6088's were the tube they used.

-Chuck