[BC] Sam Philip's Console

[Harold Hallikainen]

Remember that the old AM equipment performance rules required you to be
+/-2dB from 100Hz to 5 kHz. Measurements were to be from 50Hz to 7.5kHz.
That old vacuum tube equipment (consoles, transmitters, etc.) was
typically flat down to 30Hz. A lot of the later stuff would roll off at
50Hz. You stack several of those items together and you could not reach
the 100Hz requirement. That old "big iron" stuff was pretty good.

Harold


> I  was intimately familiar; I have two of them; the 1939 model was in use
> up
> into the 80s, and, yes, did sound good. The early ones (1939) wouldn't
> pass
> an FM proof because the input transformers rolled off above 10kc. They
> used
> 1620s/6J7s on rubber grommet mounts and special flexible wires in the
> input
> stages. The pushbuttons were a pos; GE used the same sorry kind, but
> Collins
> used leaf-spring type. The GE board looked wierd, but I believe it was
> almost identical, electrically (got one, but never worked on it.)
> Getting wet shouldn't hurt it; I'm sure it probably needed washing,
> anyway......................lol
> M.


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