This portable 40-Meter
station was the subject of a construction article by Myron "Mike"
Hexter, W9FKC, in QST Magazine, December 1951, p11.
Learn More About It
Learn More About It
12-volt 1-tube Regenerative Receiver:
This article first appeared in the Delaware Valley Historic Radio Club's Oscillator.
12-volt 1-tube Reflex Receiver:
I was so encouraged by the success of the simple
regenerative set that I undertook the design of a much more elaborate one-tube
set using a "reflex" circuit. In this receiver the signal passes
through the tube twice: first, as radio frequencies and then a second
time, as audio. Because there is considerable RF gain before the
detector, this radio is far more sensitive than a simple regenerative set.
This is not a project for beginners.
The design employs a lot of hard-to-get and potentially expensive parts,
almost enough to build a rudimentary superheterodyne. You'll probably
need a sweep generator to get the tunable band-pass filter working correctly.
You should be prepared to reengineer the circuit to suit the parts on hand.
 |
 |
Simple battery tube radio based on the PGXS crystal set.
1-Tube Regen Based on Above
