Exo-metal Well-known member May 18, 2023 #1 I have some KT88 Gold Lion I want to use in my vht 2150. What is the bias and can it be set on standby, I can't recall.
I have some KT88 Gold Lion I want to use in my vht 2150. What is the bias and can it be set on standby, I can't recall.
CEG85 Active member May 18, 2023 #2 Depends on your plate voltage and what bias points your set of KT88’s are set too. Tubes cannot be biased when only set to standby.
Depends on your plate voltage and what bias points your set of KT88’s are set too. Tubes cannot be biased when only set to standby.
Exo-metal Well-known member May 18, 2023 #3 Under load, pin 3 to ground? I don't have a way to read current.
Chubbs Well-known member May 18, 2023 #4 You either need a 1ohm resistor tied from pins 1 and 8 to ground to read the current or a bias tool which will allow you to do the same. With that and your plate voltage (pin 3) you’ll be able to set it if I understood you correctly.
You either need a 1ohm resistor tied from pins 1 and 8 to ground to read the current or a bias tool which will allow you to do the same. With that and your plate voltage (pin 3) you’ll be able to set it if I understood you correctly.
griff10672 Well-known member May 19, 2023 #5 priceless if you are going to start swapping tubes / checking bias or just straight up retubing your amps
priceless if you are going to start swapping tubes / checking bias or just straight up retubing your amps
