Many of these tubes, along with UV-199, U99, V99, UX201
00A and 01A, were used in Home bread board projects in
the '20s. I would like to trade copies of printed
articles about these projects. Check your old Radio
Magazine, Popular Mechanic's etc. See what you come up
with.

: Many of these tubes, along with UV-199, U99, V99, UX201
: 00A and 01A, were used in Home bread board projects in
: the '20s. I would like to trade copies of printed
: articles about these projects. Check your old Radio
: Magazine, Popular Mechanic's etc. See what you come up
: with.
I have several Radio News Magazzines from 1924, which can be of your interest.
My call sign is py1 DKW.
regards
Sam

: Many of these tubes, along with UV-199, U99, V99, UX201
: 00A and 01A, were used in Home bread board projects in
: the '20s. I would like to trade copies of printed
: articles about these projects. Check your old Radio
: Magazine, Popular Mechanic's etc. See what you come up
: with.