On Oct 29, 7:29*pm, "DaveM" wrote:
"N_Cook" wrote in message

...


(snip)


Not addressing the question on vents; I'll just add that my tube
amplifiers are NOT in cabinets or cases (actually, one is, a Stromberg-
Carlson, but I don't use it - just a "collector"!) My reasons a 1)
glass vacuum tubes (valves) look really good without cabinets -
particularly in a dark room (you can always tart-up the chassis with
polished wood sides, black-painted transformers, gold trim, etc.), and
2) they run cooler.
Cheers,
Roger
Thornhill, Ontario, Canada.