From: Jari Oinonen Subject: Layout for B.Blender Date: Wed, 16 Dec 2009 14:57:40 +0200 Hi Thank you for your B.Blender schematics, that was just what I was looking for as I didn't want to mod my Rat too much to suit both bass and guitar, but have an external loop pedal instead. I tried out my skills by designing a compact PCB layout for the pedal. The PCB is 5,5x2,1cm with a solid ground plane and with 1mm routing with 0,5mm clearances. The op-amp is TL074, 0,1uF caps standard 5mm polyester and 10uF 5mm electrolytics with 2mm lead spacing. The only major flaw I found is that all the pads for wiring are not placed too conventionally. Volume and blend pots are meant to be angled 16mm PCB-mount type, mounted on the copper side of the board. The board is designed with evaluation version of PADS Layout 9. I'm happy if I can return a favor and you find this layout usable. Printable pdf, screenshot and bill of materials attached. Regards, Jari Oinonen BOM R11 10k 1/4W MF R12 10k 1/4W MF R21 1M 1/4W MF R22 1M 1/4W MF R23 1M 1/4W MF R31 470k 1/4W MF C11 10u Roederstein EKA 63V C12 10u Roederstein EKA 63V C13 10u Roederstein EKA 63V C14 10u Roederstein EKA 63V C15 10u Roederstein EKA 63V C21 0.1u WIMA MKS2 5mm C22 0.1u WIMA MKS2 5mm C23 0.1u WIMA MKS2 5mm Blend Alpha 16-PC-ANG-50k lin Vol Alpha 16-PC-ANG-100k log U1 TL074CP DIP-14
PCB Layout as PDF file. Look in the bottom left hand corner. Small isn't it ;)
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Last modified: Wed Jun 21 19:26:15 EDT 2006