![Electro-Harmonix EF86 Preamp Vacuum Tube](http://rubytubes.com/cdn/shop/files/ElectroHarmonixEF86PreampVacuumTube.jpg?v=1715814530&width=1369)
Electro Harmonix
Electro-Harmonix EF86 Preamp Vacuum Tube
Electro-Harmonix EF86 Preamp Vacuum Tube
EF806S is a substitution for the EF86. It is a 9-pin pentode often used in microphones and in some amplifier designs can also be used on pre-amplifying stages.
6 month warranty on all tubes