The original 'Simple and Hold' was one of the first 'proper' modules I made which had 'proper' fabricated boards and some form of quality control. This here is the sequel.
Functionally, it's the same as the first revision except that the majority of the parts have been replaced with their surface mount equivalents (except for the LF398 S&H amplifier - for some reason the SMD version of that is frighteningly expensive). Despite having only two inputs, one output and no twiddly knobs this is a surprisingly useful and versatile module.
Feed it a trigger (the shorter the better if you want that classic 'stepped voltages' thing) and an input signal and the sampled voltage will appear at the output whenever the trigger is low. In response to feedback from folks who bought the original run I have added the obligatory blinkenlight which will light up when the trigger signal is high.
Assembly requires the use of surface-mount components - nothing that can't be achieved with a good soldering iron and a steady hand.
Files for panel fabrication can be found at: http://yomo.interzen.co.uk/panel-files/s-and-h-rev2/
BOARD SIZE: 80x16mm
NOTE: these boards have a HASL (Hot Air Surface Level) finish which is not lead-free.
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I've been a musician for a while now - up until quite recently my weapon of choice was a bass guitar, but having fallen down the rabbit hole that is modular synthesis I have a new way to make noise ...
I started out the usual way: buy a rack and a bunch of modules (ADSR, VCA, VCO, that kind of thing) and start making noises. Then I discovered the DIY scene and it all snowballed from there - sequencers, filters, logic modules ... four racks full of noisemakers later and I'm still not done.
I'm a big believer in the KISS principle - Keep It Simple, Stupid! If you want all-singing, all-dancing multifunction modules then this really isn't the place for you - I prefer to build modules to do one thing and (hopefully) do it well. This is a rule I follow when I develop software, and hardware is no different.
The stuff you'll find here will generally be 'excess' from a run of boards - the underlying designs will have been tested and known to work, all you need to do is source appropriate componentry and do a build. I'm not going to make any claims that I'm the world's best circuit designer, but hey, if it ain't broke ...
For the really curious, despite working as a software developer I do have a PhD in theoretical physics, specifically the numerical simulation of explosions. It isn't nearly as interesting as you might imagine :-p