Cgs synth

Awesome, thank you guys.

I'm going to make a couple MOTM module kits first, to get the hang of
it, then I plan on trying to make the CGS Wave Multiplier.

Getting the panel from a stooge, with a pcb plate, getting components
online, and thhen powering it through the MOTM-900.

Is it difficult to pick up this hobby?

Cole

--- In cgs_synth@yahoogroups.com, Dave Kendall <davekendall@n...> wrote:
> Hi Cole.
>
> > What is EFM?
>
> Electronics for music (EFM) is run by a Houston-based guy - Tom
Gamble, who
> makes and sells PCBs of his own designs. EFM has its own forum for
those
> designs, and several CGS forum people are also in the EFM forum.
>
> >I will have a rack and MOTM power supply, but where will I get the
> >cables to connect the power supply to the CGS board/module?
>
> What I did was to order some 0.156" Molex 4-pin headers and crimp pins,
> connect the ±15v and GND terminals in the header to different
coloured wires
> ( stranded, not solid core, about 1 mm diameter) and then solder the
other
> ends directly on to the CGS PCBs. On CGS boards, it's definitely strong
> enough, and you can still easily remove the boards or completed
modules from
> the MOTM-900 distribution board, when servicing or tweaking. I use small
> bits of heat shrink at 4" intervals to keep the wires together.
>
> If you're starting out ordering components, it's worth thinking
about what
> modules you are planning on building, working out a big parts list,
and then
> ordering larger amounts to get bulk discounts. (saves on
shipping/delivery
> too) Some components are used a lot - 100k resistors are very
common, as are
> 10K and 1K. In bulk, 1% resistors can often be nearly as cheap as 5%
> resistors, so it's worth going for 1% if bulk buying. Other common
items are
> 47K linear pots, 8, 14 and 16 pin IC sockets, 1N4148 diodes, 47K,
22K , 2K
> resistors and some other values, and TL072/TL074 op-amps. BC547
transistors
> are used a lot in CGS designs, and 0.1uF and 100uF caps are common.
> Ebay occasionally has some bargains, though watch out for hidden high
> postage costs!
>
> IMO, it's well worth spending time looking through different electronics
> catalogues and comparing prices of components. It's a bit boring,
but pays
> off in the long run. As an example, in the UK, RS components are usually
> expensive, but when buying tubes of 25 ICs, they often work out way
cheaper
> than alternative sources. In one case, it was cheaper to buy 25
op-amps in
> a tube than to buy 15 individually.
>
> Cheers,
>
> Dave.
>
>
>
> [Non-text portions of this message have been removed]