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
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