Tsakiridis Devices Aeolos Operating Manual

The manual explicitly approves replacing the stock 6N1P with an ECC85 or 6AQ8. However, it warns that a 6922 (6DJ8) has a different heater current and will damage the regulator.

When you flip the main power switch (labeled "MAINS"), you will see the filaments glow. Do not panic. Do not send an email. The tubes will flicker for 15 seconds as they wake. This is normal. After 45 seconds, engage the "STAND-BY" to "OPERATE" switch. Tsakiridis Devices AEOLOS Operating Manual