Very cool. Two MOTM modules shipping within a month of each other. This
will be a good fall. My wife is now ready for one of the 1U easier
modules. I have (lied and) told her the 410 and 320 would be too difficult
for her (so I can have them all to myself).
RATE or SPEED either one seem appropriate for LFOs to me.
Larry H.
----------
> From: Paul Schreiber <synth1@...>
> To: MOTM listserv <motm@onelist.com>
> Subject: [motm] MOTM-320 info
> Date: Tuesday, September 07, 1999 12:34 AM
>
> From: "Paul Schreiber" <synth1@...>
>
> The MOTM-320 is about to go to board shop. Here are some final details.
>
> a) There is no RANGE switch, not needed. This is due to the exponential
> response of the FREQ pot. (well, the ∗vco∗ is exponential!)
>
> b) speaking of that pot: I am about to call it 'RATE' since the LFOs in
> the -410 are RATE.
> I want to reserve FREQ for the VCO/VCF and most people I have talked to
> refer to
> "LFO speed" or "LFO rate" more often than "LFO frequency".
>
> c) [Dave & Charles, wake up!] Need to change the pic to be as follows:
>
> LED RATE
> -/+ FM
> MOD SHAPE
>
> jacks as before.
>
> d) the LED is a bipolar red/green. There is a 4-way jumper option on the
pcb
> to connect
> the LED driver to any of the 4 waveshapes. This is because each one will
> "look different'
> based on the SHAPE control voltage (which in turn changes the symmetry
> and/or DC offset
> of the output). The pads are on a 0.1 x 0.1 grid so you could use a 2-row
> 4-pos header
> and a DIP shunt (like on the MOTM-100 kit) and select. However, the kit
will
> not include these,
> just an explanation (there are already a zillion parts as it is). You can
> built it, use a jumper
> clip to see which one you like (∗everybody out there should own at least
2
> Pomona # 3781-18
> 'Mini-Grabber' test leads [I have about 30 different sizes/colors!]∗) and
> then you can take a scrap
> resistor lead and solder to the ∗top∗ of the pcb pads.
>
> e) the LED comes with the leads already soldered/heatshrinked with the
panel
> holder. Therefore, the
> astute builder will note that to prevent another solder-on-the-top-pads
> routine, I will instead provide
> 2 "turret" terminals, similar to the ones on the Power One supplies in
the
> MOTM-900. These first solder
> into the pcb, then after you put the LED through the front panel, you
solder
> the wires to the turrets.
>
> The '320 pcb will go to the shop on Thursday, so we are talking around
Oct.
> 1 for shipment.
>
> Paul S.
>
>
>
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