In article ,
Arny Krueger wrote:
"Dave Plowman (News)" wrote in message
...
I've been fixing a Cambridge A60 - turned out to be nothing more than
both speaker fuses blown. But thought I might as well check the
quiescent current while I'm at it. And the method given in the manual
is weird - replace the PS DC fuses with 15 ohm resistors and measure
the voltage across them.
Not having any high watt 15 ohm resistors to hand is there a different
way?
I don't know that those resistors have to have a lot of power rating.
If you are adjusting quiescent current, you're only talking a few dozen
milliamps. That doesn't drop a lot of voltage and therefore, the power
being dissipated is nominal.
They say to use 5 watt ones.
--
*A backward poet writes inverse.*
Dave Plowman
London SW
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