"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message
news:9LednWF97e5xDhrfRVn-pg@speakeasy.net...
Quote:
"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com
wrote
in message news:118ef69isc5dp88@corp.supernews.com...
Over 14 years, would drift from aging cause them to go
that far out of tolerance?
I was recently working on an amp from the 1950's; every carbon comp in
it
was at least 20% higher than its markings indicated.
(Woe be unto the tech who repairs a tube guitar amp and replaces the
resistors with new ones whose values are nominally correct! Depending
on
which resistor it is, it'll change the sound of the amp...)
|
For the old toob amps., 20% wasn't all that disastrous. As long as the
change wasn't caused by heat. Since those amps get hot, the half watt
resistor is probably only capable of dissipating half that, because it's
in a hot environment. Could be that the vents were inadequate or were
plugged up with dust and spider webs.