Re: big L

On Sat, 21 Dec 2024 15:03:06 -0800, dplatt@coop.radagast.org (Dave
Platt) wrote:

In article <3faemjtve5hvghau2up1stdid1u3bq84gd@4ax.com>,
Cursitor Doom  <cd@notformail.com> wrote:
>

Indeed. And that's just one aspect of it. The designers in the early
stage of toob development deserve huge respect for the performance
they were able to wring out of a single stage - and all just to save
the hard-pressed consumer back in the day a few sheckles.

>
One trick I've seen mentioned in a couple of books, was to use a
single tube section as an amplifier for two entirely different stages
of a radio or TV receiver.  The tube's grid was fed a combination of
an incoming IF signal, and audio output from the detector; the output
at the anode was fed to both the detector input, and to the audio
output (or a second, power-amplifier stage).  Since the frequencies
were so greatly different it was possible to use not-too-awful filters
to combine and separate them, and they didn't interfere with one another
badly enough to keep the system from working.
>
Quite a different era from today, when they're talking about single
chips containing a trillion active devices!

*Exactly*
Can we please have 2 minutes silence for the geniuses of yesteryear?