|In my search for a good
output tube I came across this mysterious little triode. It's history has been sort of a
national secret ever since it was taken into production back in the late 1930's. Official
data of this tube was never given to the general public and most have had to rely on old
schematics to find any parameters for it. Only people with good tube testers or curve
tracers can really see what this tube was like.
This cloud of mystery might sound interesting, but it makes it hard as hell to design an amp around it. This page is dedicated to finding out as much about the VT52 and it's predecessors as possible to give a complete picture of this wonderful old triode.
|The story behind the VT52|
|Tube tester settings and results|
|Schematics using the VT52|