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Hifisonix kx-Amplifier
Hifisonix kx-Amplifier
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Old Today, 04:32 PM   #411
Rallyfinnen is offline Rallyfinnen  Sweden
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Join Date: Jan 2017
I always had this (RC to GND on the back of the PCB's) since I first tested the boards on the bench.
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Old Today, 05:47 PM   #412
polsol is offline polsol  South Africa
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Join Date: Aug 2004
Location: Cape Town
Originally Posted by Bonsai View Post

can you solder directly on each module PCB a 10 Ohm resistor in series with a 0.1uF cap from the amplifier side of the output coil (ie the side closest to the 0.33 Ohm emitter degeneration resistors) to the 0V where it comes in on the PCB. You need keep the leads as short as you can make them.

Can you then tell me what you see on your scope.

I don't have a spare 10 ohm 5W resistor handy but can pick one up tomorrow.
Would connection using the ZN output and and OV tabs on the kX board suffice or do you want it closer?
Tony M
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Old Today, 06:15 PM   #413
Bonsai is online now Bonsai  Europe
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Location: Europe
From the ZN to the 0V should work well - you must just keep the connections short.
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