You may want to use both heater sets... They're rated at 2.5 amps each. A pair of KT66 calls for 2.6 amps. I had already run the heater wires on my build, so I just removed the jumper between the power sockets, and used one heater set for the three 12ax7's and one KT66, and the other set for the remaining KT66.Southbay Ampworks wrote:You don't need to use both heater wire sets, just one. I went with the green pair. It's the only color that matches up to George's Heyboer wiring. LOL
