SerTech Electronics
Tube Experts     OTL Specialists
Over 30 Years Experience

Repairs and Custom Modifications
For All Tube Equipment



We service these Tube Amplifiers and many others:

Air Tight
Altec
Audio Research
Blue-Ox
Dynaco
Fisher
Fourier Components
Golden Tube Audio
Graaf OTL
Heathkit
Jolida
Harmon Kardon
Marantz
McIntosh
PS Audio
Scott
Sonic Frontier
Tenor OTL
VTL