The Triode Board

The Tetrode Boards

Control and Protection
for your
RF Power Amplifiers

Protect your tubes
and help them deliver a high-quality signal.

Tried and tested – now over 1500 in use world-wide!

Download the
User Manual Updated

More about the
Tetrode Boards

Download the
User Manual

'Universal' Control Units for your Power Amplifiers

• Versatile – use with many different tubes.

• Ideal for your new amplifier
  or a 'drop-in' upgrade for your existing PA.

• Configurable for all your special requirements.

• Professional Instruction Manuals with detailed
  'how-to' instructions.

• Personal backup from the designer.