[TechAssist] Re: amplifier problem - buzz on outputs
- From: "David Lessard" <mrfixit@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 8 Dec 2002 16:32:03 -0500
I have some older amplifier schematics here, what is the make and model?
David Lessard
mrfixit@xxxxxxxxxxx
Alexandria Electronics
50 Harrison Street
Alexandria, Ontario
K0C1A0
(613)525-4502
"Share what you know, Learn what you don't"
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of babalino
Sent: Sunday, December 08, 2002 4:25 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] amplifier problem - buzz on outputs
Hello, I have an audio amplifier(150W) (240V at 50Hz) that is giving me a
headache!
The linear power supply seems to have a problem here.
The output to the speakers gives a buzz on both speakers and no audio
signal.
The transformer in the power supply starts off cool but after 10 minutes is
too hot too touch when I switch it off.
I have checked all the components in the linear power supply and they seem
ok.
The transformer is giving me outputs of 10Vac and 22Vac
Any ideas to track this one down. It is a fairly old amplifier.
Regards babalino
Mr D Graham
Grahams Electronics
978 Walker Road
Newcastle upon Tyne
England
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