Scott Dorsey wrote:
Chuck Harris wrote:
Well, yes. When functioning as a demodulator, the diodes take the
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.

Okay, so we need a fast Schottky diode, with outrageously high breakdown
voltage. Something like that has to be out there, right?
--scott

Shottky, and outrageously high breakdown voltage don't go together.

What you think of as a normal diode is a slab of P, and a slab of N
semiconductor bonded together to form a junction. A shottky diode
is a slab of N semiconductor fused to a piece of metal. 100V is a
really high voltage for a shottky diode.

What you could do, is put some of your favorite diodes in a metal can,
and install them after your radio has died from EMP. Something which
will never happen anyway.

-Chuck