307A Ken-Rad VT-225

Excellent classic pentode, Ken-Rad is the most common 307A type. Great KENRAD tube for SE amplifiers! I personally used it in few amps, here is small 307A VT-225 baby amp, it is also used in RH307A amp by Alex Kitic and Pete Milett’s 307A Push Pull Amp (great article about VT-225 307A)!!!.

Mostly dark coated, but some are clear glass.
In JAN boxes, longer life than National Union.

Before selection … All tubes are carefully tested on Neuberger RP370 for plate current and on Dynamic Mutual Conductance Tube Tester I-177-B for conductance.


307A Ken-Rad VT-225 was last modified: May 7th, 2013 by tubes.rs

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>