how long to wait before pulling out a tube? Using a Scott 222c.
I'm sure different engineering for different amps dictates different procedure...but...
I've been waiting 5 minutes to be safe, until I learn otherwise.
I've been leaving source (cdp/dac) going, turn off amp, wait 5 min., swap tubes, back on, wait 2-3, play. Whaddya think?
Don
