Moxonamp has been designing and constructing guitar amplifiers for many years, all are hand built in UK using proven techniques.
TUBE (or valve) AMPLIFIERS were the original guitar amplifiers and were simpler in design and use than the modern Mosfet solid state designs. We started out repairing tube and then solid state models but have been able to build on experience into developing new all tube circuitry for improved tone and performance.
All tube designs are developed from the original cinema sound amplifier circuit first used by Western Electric (Model 142A) more than 70 years ago. That led to famous followers, Leo Fender and Jim Marshall amongst others, to produce the guitar amplifier models that we see today.