Vintage Simmons Drums (UK) Users Group

I could use the MK1 schematics :)

WT

16 dec 2013 kl. 11:19 skrev "chris@chriswareham.net" <chris@...>:

> 
> 
> On 16 December 2013 at 03:13 Michael Buchner <buchnerelectronics@...>
> wrote:
>> This is the schematics of the Mark 2 (analogue Simmons ClapTrap), the
>> humaniser is already built in. It was a great idea to use the AC frequency
>> from the PSU to modulate the VCO. A free LFO! This is the Simmons spirit!
>> Also bad, that the LM566 (VCO) is so expensive these days. Back in the days,
>> you could buy it for a few cents. Now they want 15 Euro or more.
> 
> There's an interesting thread on the Electro Music forum that suggests the
> NTE994M as an alternative to the LM566:
> 
> http://electro-music.com/forum/topic-12642.html
> 
> It also mentions an interesting drum voice that can be built around those chips.
> Something for the Christmas break perhaps ...
> 
> Chris
> 
> 
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