[sdiy] Homemade synth clone
John P Shea
info at extrinia.com
Sat Feb 16 11:18:55 CET 2019
Remember to keep your testing as modular as possible - BOM/schematic,
Get each of the sub-systems working before wiring them up.
Don’t underestimate the mechanical design either. Get all your parts in
your hand and check both the library footprint and board/panel clearance.
Looking forward to updates.
On Sat, 16 Feb 2019 at 7:55 pm, Mattias Rickardsson <mr at analogue.org> wrote:
> Impressive undertaking, good luck with it! :-)
> I hope you eventually find a good dual-pot solution.
> My only advice in addition to what others are saying is that if you're
> into recreating the panel, make sure to use the correct typefaces. The
> typeface is the text's voice. Been seeing too many sad "clones" or
> "replicas" blatantly/ignorantly using Arial lately... :'-(
> On Fri, 15 Feb 2019 at 15:03, Luís Marka <luis.marka at terra.com.br> wrote:
>> Hi gang,
>> Just started a pretty complex project: cloning a Memorymoog. With the
>> recent availability of CEM ICs, think this is pretty much feasible now.
>> A lot of work and a mountain of components, of course, but still possible.
>> Over the last few days I managed to try Kicad for the first time (have
>> been using Eagle for a long time but the Memorymoog boards are too large
>> for my Eagle license) and recreate the digital board. I am halfway thru
>> the task; see attached a screenshot of what I got so far!
>> The only parts I was not able to source yet are the 14-segment
>> fluorescent display, and the dual concentric frequency potentiometers.
>> For now I am going to replace the display with a larger 14 segment LED
>> display, and maybe use two separate potentiometers for frequency
>> ("Coarse" and "Fine"). Also, the noise generator MM5837 seems to be made
>> of Unobtanium. Will use an Electrodruid NOISE 1B chip instead!
>> I would like to ask the list:
>> - do you guys know of any error, inconsistency or omissions in the
>> schematics available on the Web other than what can be found in the
>> factory service bulletins (autotune update, etc)?
>> - anyone got a spare LT-1604 fluorescent display that are willing to sell?
>> - any hints from anyone that already tried something similar?
>> - I know there are a few modifications to the voice cards that improve
>> stability, but could not find detailed info. Is anyone familiar with
>> these modifications?
>> Cheers and thanks!
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