phase linear 400

Joined
May 25, 2023
Messages
80
Location
Mount Vernon, WA
Tagline
Bikes, baseball and big amps.
Progress I think. I removed each transistor one by one. The DBT went out on only one. The bottom transistor in row one [Lower right by transformer]. I replaced the transistor with another, and the DBT still lit up, and went out when I removed the transistor. The DBT did not go out when I removed the other transistors one by one. time for a break. It's taco Tuesday.
 

gene french

Veteran and General Yakker
Joined
Mar 6, 2022
Messages
5,010
Location
guayabo de bagaces, guanacaste, costa rica....
Tagline
music...the healer of souls...
interesting morning....
my original wopl complete with new cabinet once before dropped the right channel...
next morning it returned...
well, today the right channel decided to take another vacation...
christine is now pulling voigt duty....
it does sound nice...
will delve into it when i tie up a few loose ends...
aint life grand...
hopefully is something simple...
working on another set of meters or two...
 

Gepetto

Administrator
Staff member
Joined
May 15, 2011
Messages
13,473
Location
Sterling, MA
Tagline
Old 'Arn Enthusiast
interesting morning....
my original wopl complete with new cabinet once before dropped the right channel...
next morning it returned...
well, today the right channel decided to take another vacation...
christine is now pulling voigt duty....
it does sound nice...
will delve into it when i tie up a few loose ends...
aint life grand...
hopefully is something simple...
working on another set of meters or two...
flaky relay??
 
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