Sometime, perhaps between 1945 and 1950, I read an article on building a one tube regen radio using a 1Q5GT tube. It was unique in that the input was applied to the screen grid and the B+ was only 6 volts. I built the radio-it worked, and started my careeer as an electronics engineer and lifelong ham operator. I would really appreciate locating and owning the original article, so I can build the radio again.
73,
Sam

Hi Sam

I have similar circuits somewhere around here. The circuit is called "space charge". By connecting a positive voltage on grid #1 it causes a tube to draw current.

To make this circuit use Grid #2 as input and connect grid #1 to B+, around 9 volts.

Here are some interesting, simple radio circuits. Didn't see space charge mentioned but a person could reverse connections between grid 1 & 2 and use low voltage for B+.

http://vintageradio.me.uk/radconnav/valvetrf/

Norm

:Sometime, perhaps between 1945 and 1950, I read an article on building a one tube regen radio using a 1Q5GT tube. It was unique in that the input was applied to the screen grid and the B+ was only 6 volts. I built the radio-it worked, and started my careeer as an electronics engineer and lifelong ham operator. I would really appreciate locating and owning the original article, so I can build the radio again.
:73,
:Sam

I don't know if I ever responded to this, so here goes: yes, I would like to see the schematic of the original "reversed" grid and screen article, if you have one, as well as the magazine source, too. Thanks
for your response.
73,
Sam

:Hi Sam
:
: I have similar circuits somewhere around here. The circuit is called "space charge". By connecting a positive voltage on grid #1 it causes a tube to draw current.
:
: To make this circuit use Grid #2 as input and connect grid #1 to B+, around 9 volts.
:
: Here are some interesting, simple radio circuits. Didn't see space charge mentioned but a person could reverse connections between grid 1 & 2 and use low voltage for B+.
:
:http://vintageradio.me.uk/radconnav/valvetrf/
:
:Norm
:
:
:
::Sometime, perhaps between 1945 and 1950, I read an article on building a one tube regen radio using a 1Q5GT tube. It was unique in that the input was applied to the screen grid and the B+ was only 6 volts. I built the radio-it worked, and started my careeer as an electronics engineer and lifelong ham operator. I would really appreciate locating and owning the original article, so I can build the radio again.
::73,
::Sam