• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

CR Developments Romulus TUBES HELP

Why do you want to replace the 6L6WGC with another tube type?
Do you want a different sound?
Do you want more power?
Do you want less distortion?
To find less expensive output tubes?
Or what?

A lot of re-engineering and different parts would be required to replace the 6L6WGC tubes with another tube type.
In most cases, a 6L6GC is a direct drop in, plug and play; and is less expen$ive too.

If you do not like 6L6WGC tubes, then a simpler solution would be to purchase another amplifier that does not use 6L6WGC tubes.