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DIY Stompboxes => Building your own stompbox => Topic started by: bandmbill on May 27, 2014, 07:49:50 AM

Title: OD-1 clone
Post by: bandmbill on May 27, 2014, 07:49:50 AM
I am thinking about building a Boss OD-1 clone.

The original had the RA3403 quad op-amp chip - are there any close equivs - couldn't find a data sheet for the 3403 - did find someone using a TLC2274 somewhere.

Any help would be appreciated.

Thanks

Bill
Title: Re: OD-1 clone
Post by: duck_arse on May 27, 2014, 09:00:33 AM
I found this:
http://pdf.datasheetcatalog.com/datasheet/fairchild/KA3403.pdf

if you ignore the prefix, it is a quad opamp (4 x 741? we can do better than this), optimised for single battery supply. looks a bit like an lm324. the tlc series also does single supply.
Title: Re: OD-1 clone
Post by: Mark Hammer on May 27, 2014, 09:00:55 AM
Smallbear carries a JRC3403, which ought to do you nicely.