Dummy load , high power audio, add ons ?

50V , low wattage lamp (or seriesed lower V ones) (assuming normal testing
is 10 to 20W range) to visually show if the volume is set too high, also if
high level high f oscillation on the output; sacrificial, fusewise, if
overdriven.
AC voltmeter , preferably autoranging for possible overload situation, to
measure/long term monitor the RMS power.
High power speaker pot (plus droppers) leading to a low quality ,
sacrificial ( for intitial maybe problematic testing) small speaker, for
basic possible intermittant sound, on/off, indication. Can be switched out
by plugging in a good quality speaker for audio monitoring of quality of
sound issues in otherwise known good amp.
Provision for coupling in a scope for distortion monitoring, when necessary.
Any other add-ons that others know of ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



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