Tube ratings - color codes

[rvschulz]

Okay, spoke to Mesa customer support about putting 4 6L6 in my Mark III and they said okay - use the "red" coded tubes. Well, I have a slew of semi-matched and matched 6L6 tubes which are not Mesa.

anyone knows the rating coding for plate voltage and transconductance - or is it just plate voltage ? thanks.

roger

 

[lesterpaul]

check out the tubes section on this board..do a search..lots of info

 

[rvschulz]

yeah, i just read about 200 posts and now my head is swimming. thanks.