MOTM

I've always questioned the need to have pots/knobs for every stage 
and row of a sequence. All those knobs and LEDs sure look great, but 
are they really necessary?

It would be much cheaper to build a digital/analogue hybrid with a 
single programmer pot/knob to dial in (or sample from an external 
source) the voltage at each sequence stage. The voltage is then A/D 
converted and stored in memory for later playback via D/A conversion. 
This affords programmability and virtually unlimited sequence length. 
The stored sequence can be easily modified at runtime using a CV 
mixer to add or subtract a performance voltage. Naturally, you'd want 
multiple output rows as well, and the ability to program the note 
length at each stage for each row. This is all easily done with a 
digital controller.

I'm not saying that multi-knob fixed-length all-analogue sequencers 
are bad, I just haven't had any use for them since I started using 
digitally controlled sequencers (around 20 years ago). Am I missing 
something?


At 11:09 PM -0600 2/9/01, thomas white wrote:

>110 Jacks @ $2.00 = $220.00
>60  Pots @ $5.00 = $300.00
>60  Knobs @ $2.00 = $120.00
>60  LED's @ $2.00 = $120.00
>19  Push Switches @ $3.00 = $57.00
>7   Toggle Switches @ $5.00 = $35.00
>3   Panels worth of metal $150.00
>
>Total of $1002.00 parts alone. Double the compact unit price, talk about
>yikes! Would end up a $2000.00 system at the cheapest with overall release
>(R&D&P) time taking much longer than the 1 panel guy.
>
>  >From: mate_stubb@...
>>To: motm@yahoogroups.com
>>Subject: [motm] RE:  Check out Big Dave's DIY Design again
>  >Date: Sun, 02 Sep 2001 20:44:59 -0000
>  >
>  >
>  >17 pots @ $5.00
>>17 knobs @ 2.00
>>31 jax @ $1.20
>>22 switches @ $5.00
>>18 leds @ 1.00
>>1 panel @ 50.00
>>-----------------
>>Total $453.20 yikes!
>>
>>Not to mention pcbs, parts, labor, etc. You would have to charge
>>$800 - $900 minimum to build one for somebody.
>>
>  >Moe
>>

-- 
------------------------------------------------------------------------
Scott Juskiw 
scott@...