Thread: What is BEST all-tube, general coverage receiver under $1000? Under $2000?
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Old January 9th 07, 07:37 PM posted to rec.radio.amateur.boatanchors
Don Bowey Don Bowey is offline
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Default What is BEST all-tube, general coverage receiver under $1000?Under $2000?
On 1/9/07 10:32 AM, in article
l, "Stan Barr"
wrote:

On Mon, 08 Jan 2007 17:10:25 -0500, Chuck Harris
wrote:
Scott Dorsey wrote:
In article ,

Any reason why a 1N4007 wouldn't be happy in there?

Well, yes. When functioning as a demodulator, the diodes take the

Splitting hairs, if the diodes were in a ckt such as a "ring modulator"
where they functioned as a product detector, then they *were* a demodulator,
but most diode detectors were just envelope detectors.


IF frequency (455KHz), and the BFO frequency (453.65/456.35KHz), and
make audio. When functioning as a modulator, the diodes take the
audio, and the BFO frequency, and make modulated IF.

A 1N4007 cannot switch at even audio rates, let alone at 455KHz.

You could always try a "vaccuum state" diode such as a 6AL5...

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