2003ProGen4050 Rife Resonant Light need repair

invalid@example.com (Kirkland), Kirkland
Sat, 21 Apr 2018 17:41:51 +0000

I inherited this machine that hasn’t been used in years. I tried to email the Resonant Light Technology Inc. but no reply. Everything seems to work accept The generator display is lit but blank. At this point what can I do to get it working? Do I have to trash it?
model RBT4,
Serial# 1243,
Amplifier RTL200,
Transmitter Uniden PC 68XL,
Power Supply SAMLEX 1223,
Tuner RB300B,
Frequency Generator Progen 4050,
Tube18” Cdn Sci 100%argon - Torr