Electro-Music Klee Sequencer Build and Applications Thread

Scott Stites · Posted: Sun Apr 13, 2008 7:44 am Post subject:

Note: At this point, the thread branched off into the Pimping Your Klee thread.

Cheerio,
Scott

plord · Joined: Dec 15, 2007 Posts: 21 Location: Charlotte, VT

hey folks,

If someone could help me out with a sanity check I'd really appreciate it. Here's my Mouser order for front panel parts; I'm building a slider Klee using Dennis' Wiard front panel, with no mods requiring extra panel parts (I will put in 10V gates though). I've got jacks so no worries there. I've included a couple of knob types to check out (not positive that the wide ones will work without modding the panel for a smidge more room), plus extras for all parts. Can anyone spot an obvious flaw? Are the alpha rotary pots or any other components I picked "good enough"? Did I leave anything out? Thanks for any insight or correction, this is the first big project I've sourced from scratch.

Sorry for the formatting, best I could do.

-Paul

Mouser #: 313-1230-1M
Mfr. #: RV120-20-15F-B1M
Desc.: Alpha 12mm Metal Shaft Potentiometers Linear D-Shaft 1M PC Mount
QTY: 4 $1.99 $7.96

Mouser #: 313-1230-100K
Mfr. #: RV120-20-15F-B100K
Desc.: Alpha 12mm Metal Shaft Potentiometers Linear D-Shaft 100K PC Mount
QTY: 4 $1.99 $7.96

Mouser #: 633-MRA112A
Mfr. #: MRA112-A-RO
Desc.: Rotary Switches SHAFT SP 2-12 POS
QTY: 5 $11.29 $56.45

Mouser #: 450-0155
Mfr. #: 450-0155
Desc.: Knobs SLIDER RECT PLASTIC
QTY: 18 $0.33 $5.94

Mouser #: 450-3051
Mfr. #: 450-3051
Desc.: Knobs SLIDE CONTROL BLACK
QTY: 18 $0.33 $5.94

Mouser #: 108-0041-EVX
Mfr. #: 108-0041-EVX
Desc.: Miniature Toggle Switches SPST OFF-ON
QTY: 25 $1.97 $49.25

Mouser #: 108-0044-EVX
Mfr. #: 108-0044-EVX
Desc.: Miniature Toggle Switches SPDT ON-OFF-ON
QTY: 20 $1.97 $39.40

Mouser #: 78-TLLR4401
Mfr. #: TLLR4401
Desc.: Standard LEDs LC Red Tint Diffused
QTY: 50 $0.15 $7.50

Mouser #: 108-0042-EVX
Mfr. #: 108-0042-EVX
Desc.: Miniature Toggle Switches SPDT ON-ON
QTY 3 $1.97 $5.91

Mouser #: 10PA322
Mfr. #: 10PA322
Desc.: Pushbutton Switches BLK BODY RND RED CAP
QTY 3 $2.91 $8.73

Mouser #: 312-9201F-50K
Mfr. #: RA4520F-10-20D1-B54
Desc.: Slide Potentiometers 45mm TRVL Linear 50K
QTY: 18 $1.08 $19.44

Sound · Joined: Jun 06, 2006 Posts: 842 Audio files: 1

About the Mountain switch I had tested 108-0001-EVX and they are good, but for the Klee I ordered the Mountain switches 1055-TA1120-EVX and the 1055-TA1135-EVX. And in my opinion they are not good. The bat is rude to move and dance to the sides.

This make me doubt about the quality of Mountain switches.

Because the switches are one of the most important part of the Klee I have ordered the NKK M20 series. 633-M201101-RO 633-M201301-RO 33-M201201-RO. They are more expensive but in my opinion they are much better.

Very Happy

Welcome paul.

Òscar.

Sound · Joined: Jun 06, 2006 Posts: 842 Audio files: 1

plord · Joined: Dec 15, 2007 Posts: 21 Location: Charlotte, VT

plord · Joined: Dec 15, 2007 Posts: 21 Location: Charlotte, VT

Sound · Joined: Jun 06, 2006 Posts: 842 Audio files: 1

slo · Posted: Tue Apr 15, 2008 9:25 pm Post subject:

Uncle Krunkus · Posted: Tue Apr 15, 2008 10:16 pm Post subject:

Yeah, if they're the type I think they are, they're all plastic, thread and nut. I'm so sick of plastic threaded sockets, I've vowed not to buy them again.

plord · Joined: Dec 15, 2007 Posts: 21 Location: Charlotte, VT

plord · Joined: Dec 15, 2007 Posts: 21 Location: Charlotte, VT

Kartoshka · Joined: Jan 13, 2008 Posts: 28 Location: Toronto, Canada

i think i gonna plan my klee with this type momentary:
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they have very nice look and feel of course,
and can be obtained with illumination as well.
they're costy but they well worth the elevator operator feeling! Cool

Uncle Krunkus · Posted: Wed Apr 16, 2008 6:32 am Post subject:

State Machine · Posted: Fri Apr 18, 2008 4:25 am Post subject:

I apologize for repeating myself but it bears repeating Shocked

I am posting this because there are lots of new builds going on and want to lend my best advice Very Happy

Buy the BEST switches money can buy if you can afford it:

http://www.nkkswitches.com/

All the switches on this design will get lots of use, especially the pattern and bus switches ! I also guarantee that if you don't, you will regret it later on when they start to get intermittent.

Bill

BananaPlug · Posted: Fri Apr 18, 2008 2:22 pm Post subject:

Yeah, get something that will last a while.
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loopcycle · Joined: Nov 06, 2006 Posts: 101 Location: California

i ended up with these momentaries:

mouser 612-RP3502MA-RED

(they come in green GRN and yellow YEL too.)
they have a pretty good feel. the button resistance is somewhat high and i would have preferred a larger surface area, but im pretty happy with them. they have metal threads/body, the button itself is plastic.

i did end up with all NKK toggles, and i think they were the most expensive part of the project (around $150 or so).

State Machine · Posted: Mon Apr 21, 2008 7:18 pm Post subject:

Scott Stites · Posted: Tue Apr 22, 2008 6:19 am Post subject:

The rotary was the only NKK switch I used. The rest were mountain switches. They're working just fine. If I woulda laid that kind of cabbage out for switches, I wouldn't be around to play the Klee once the wife found out.

Guess I had better luck with the production run of my switches - they feel just fine, and I don't have any doubt they'll keep working.

So far Laughing

Cheerio,
Scott

Kartoshka · Joined: Jan 13, 2008 Posts: 28 Location: Toronto, Canada

Found the bezels cheaply online,
no need to buy them locally for twice-triple the price.

look on ebay for Item number: 290225273918
for about $11 for qty of 50, shipping included.

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plord · Joined: Dec 15, 2007 Posts: 21 Location: Charlotte, VT

Paulyvoks · Joined: Apr 21, 2008 Posts: 2 Location: LBC

Hi everyone.

I'm currently researching while awaiting my boards and kits.

Right now I'm a bit snagged as to what PSU would be easiest and more complete in a kit form.

I 've got no problems about building one If I must. Especially if it's cheaper.

I'm currently considering this PAIA kit:
http://www.paia.com/proddetail.asp?prod=9770R-15

Yays or nays? Any direction in the case of a nay would be appreciated!

Thanks!

Uncle Krunkus · Posted: Tue May 13, 2008 4:56 pm Post subject:

I can't remember the exact current draw at the moment, (I'm sure Scott will chime in with that momentarily) but I'm pretty sure the 9770R-15 would be fine. If 200mA is a bit on the edge, you could go for the 9770R-12, but you might need to bring down the reference to 9V instead of 10V as the LM series regulators like about 2.5V overhead IIRC.

State Machine · Posted: Wed May 14, 2008 8:13 am Post subject:

I had made some current measurements during the prototypeing phase of hte project and had a discussion with Scott about the current draw. The rresult of which ended up in the build manual:

"The electro-music Klee Sequencer draws around 100 mA per voltage rail at +/-15Voperation, with a power dissipation of approximately 1.5 Watt per rail (3W total). A linear supply can be used, but it is possible to use it with an appropriate switching supply. In the case of a switching power supply, it is recommended that one use ferrite beads on the power supply lines connecting to the Klee Sequencer."

In reality, the +15V demands the most current at about 85 ma with all LED;s ON. The -15V requires much less than 100 ma. The split 15V supply should be OK for you to use.

If you do choose to use the 12V split supply, your 78L10 regulator will be OK without having to switch to 9V regulator since the dropout voltage for this device at room ambient temperature is 1.7V which would give you about a 300 mv dropout margin when using a 12V input.

Bill

Bill

State Machine · Posted: Thu May 15, 2008 7:40 am Post subject:

Link on Ebay for 100K 0.1% resistors required for the CV summing amplifiers in the Klee. These are really stable and used them in my latest kits I sold for the Klee.

link shortened by Blue Hell

Bill