[NJARC] Reflexed Superhet?

[NICHOLAS SENKER]

My Knight 'Star Roamer' uses a diode detector.  Does that qualify as a producion radio?
Nick Senker

----- Original Message -----
From: John Ruccolo <jr6v6gt at yahoo.com>
To: New Jersey Antique Radio Club <njarc at mailman.qth.net>
Sent: Sat, 12 Jan 2008 11:57:01 -0500 (EST)
Subject: [NJARC] Reflexed Superhet?

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Hi Al/Folks,

Al, your mention of a possible reflexed superhet
design got me to thinking (!) on they way home from
the meeting. Why didn't the big-time 5-tube AA
manufacturers try that to cut costs? They could have
used a crystal diode detector, and eliminated one
tube.

We've all seen those cheapy 4-tubers that eliminate
the IF stage (Arvin made lots of them), and are weak
performers only good for metro areas -- "City Mouse,"
as you would say. But your design (in theory) would
have given the same performance as a 5-tuber but with
4 tubes (and a diode). I wonder if any production set
was ever built like that? Or perhaps the 12SQ7 or
12AV6 was just too cheap and convenient to optimize
out of the circuit.

Regards,

JR

PS -- no, I'm not stealing your design for the HB
contest. I already have my own quirky superhet on the
drawing board.


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