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 Forum index » DIY Hardware and Software » Ken Stone designs - CGS
CGS77 input bleed
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whomper



Joined: Dec 15, 2007
Posts: 200
Location: Israel
Audio files: 2

PostPosted: Fri Jul 23, 2010 12:05 pm    Post subject: CGS77 input bleed Reply with quote  Mark this post and the followings unread

Hi,

Testing my newly built CGS77 serge filter provided two challenges to solve:

1. I get an input bleed to all outputs. It is present even at power off and is also present on the power rail (+, - and gnd).
2. The BP is very low in level compared to the LP and HP.

Am not using the on board buffers.

Any ideas?

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Erez Yaary

Home Page: http://www.yaary.com
Buy my CDs at http://www.mellowjet.de
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andrewF



Joined: Dec 29, 2006
Posts: 1174
Location: australia
Audio files: 4

PostPosted: Fri Jul 23, 2010 9:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

These are just suggestions scratch :
outside of solder bridges and wiring errors
the bleed thru can be caused by a problem with your power supply, it can happen when the power supply is overworked.
also it could (possibly?) be caused by one or boh of the fets installed incorrectly.
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whomper



Joined: Dec 15, 2007
Posts: 200
Location: Israel
Audio files: 2

PostPosted: Sat Jul 24, 2010 4:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Removed all trannys, wires etc just to find out I forgot to ground the panel to the board Embarassed .....

No issue, board is working great!

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Erez Yaary

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