Tube data----more

[Eric]

>I've realized that this book is simply an
electronic component data book
>from a long time ago, much like our National and
Motorola and Analog Devices
>etc. etc. databooks of today. The 1959 edition is
just one out of a large
>number of them that must have been published. But
it's really good for a
>learner like me.


RCA didn't make a lot of receiving tubes--in fact,
many of their
products were made under contract by GE or
Sylvania. After
1976, when they closed down all tube production,
all RCA-brand
tubes were made at the other two firms. Unlike the
data books from
the other firms, RCA's book contained excellent
educational materials.

>It doesn't have things like 6550's or 6CA7's (too
early?)

6550 was a Tung-Sol product, and 6CA7 was just the
American
number for the EL34, which was a Philips/Mullard
tube. Only later
did GE make 6550s (1968), and GE and Sylvania make
their
own 6CA7 (1971). RCA never made any of them--they
just bought
from other factories and rebranded. (RCA wanted to
sell you the
weird-pinout things they originated, like the
7027A, 7868, 7199 and
6973. Just like some ICs today, make 'em
incompatible to assure
captive sales...)

> or 300B's (not RCA?),

Western Electric, plus a few overseas licensees
like STC in the UK.
Antique Electronic Supply also has the Western
Electric tube book....