Photo shows 2020 update to air chamber
LDPE plastic sheet was cut to form side walls of chamber
New TR relay can be seen upper right
11May2020 RF output test
40watts in 1000+ out 20 meters
Amp as it arrived in 2004
preparing air chamber for testing 8874 tubes
Original 3cx800 prototype air chamber
Inside the MLA2500 on 11 May 2020
email me! my callsign at arrl dot net
Last updated 11 May 2020
