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Home » VintageKustom.com » Repairing Kustom Amps » k100 2 has a steady hum (How to fix this )
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k100 2 has a steady hum [message #25089] Fri, 17 June 2016 11:07 Go to next message
mjg3145 is currently offline  mjg3145
Messages: 16
Registered: June 2016
Junior Member
my K100 2 playing it thru the 2x12 cts cabinet has a steady hum when turned on.

can someone give me suggestions of how to troubleshoot this?

Is there a Schematic on this amp here on the forum?

thanks

[Updated on: Fri, 17 June 2016 11:07]

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Re: k100 2 has a steady hum [message #25094 is a reply to message #25089] Sat, 18 June 2016 02:07 Go to previous messageGo to next message
chicagobill
Messages: 2006
Registered: April 2003
Senior Member
Does the hum change at all by turning any of the controls? If you look at the speakers when you turn on the amp, do the cones move in or out and stay there?

Yes, there is a schematic for your amp in the technical section.
Re: k100 2 has a steady hum [message #25096 is a reply to message #25089] Sun, 19 June 2016 05:44 Go to previous message
stevem is currently offline  stevem
Messages: 4775
Registered: June 2004
Location: NY
Senior Member
If your trouble shooting skills include having a voltmeter and knowing how to use it the set it for DC volts and hook it up across the unplugged in end of the speaker cable with the amp turned on, take note of that voltage measurement and report back to us.
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