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FS: Custom CMoy boards

post #1 of 108
8/21/07 at 12:34am
Thread Starter 
There are 0 (zero) CMoy PCB available. (as of 2009-07-15)
I will be ordering from OLIMEX soon, continue to check here for updates

10$* for one board shipped, +5$* for each extra board. Price went up because I only ordered 12 (one DSS board). If there is a huge demand for more, I'll get a price break if I order 5 or more DSS's (60 PCBs total) with OLIMEX.

I also have 16 ALPS RK097 Pots for sale too, $3* extra for the ALPS.

* If paying via PayPal, 6% will be added for PayPal fees


Designed with EAGLE, 32mill traces, manufactured by OLIMEX.



I recommend at least a 4.0k ohm for the RLED, if you are using a dual 9v (18v) system. The LED has a 3.5v rating, either 20mA or 10mA rating (Digi-Key site says 10mA, but their PDF catalog says 20mA), and 12mcd rating.

Digi-Key Parts list with Yageo Resistors:
Code:
QtyNumber  Description  Customer Reference
==========================================================================
1P12383-NDCAP 220UF 25V ELECT FM RADIALC1
2495-1119-NDCAP 1.0UF 63V METAL POLYC2
2alt478-3367-NDCAP POLYFILM BOX 1.0UF 63V 5%C2
2alt478-3375-NDCAP POLYFILM BOX 1.0UF 63V 10%C2
2alt495-2470-NDCAP 1.0UF 63V METAL POLYC2
2alt495-2822-NDCAP 1.0UF 10% 63V METAL POLYC2
2alt399-5443-NDCAP FILM MKT 1UF 63VDC 5MMC2
5100KXBK-NDRES 100K OHM 1/4W 1%R2
52.00KXBK-NDRES 2.00K OHM 1/4W 1%R3 Gain of 6
510.0KXBK-NDRES 10.0K OHM 1/4W 1%R4
549.9XBK-NDRES 49.9 OHM 1/4W 1%R5 (Optional)
54.02KXBK-NDRES 4.02K OHM 1/4W 1%RLED
1ED90032-NDIC SOCKET 8 PIN .300 GOLDSocket
1OPA2227PA-NDIC DUAL PRECISION OPAMP 8-DIPOp-Amp
1296-1994-1-NDIC 1/2 RAIL VIRTUAL GND TO-92Virtual GND
2232K-NDSTRAP BATT ECON 9V I STYLE 4"LD9v Batt Straps
2CP1-3533-NDCONN JACK STEREO R/A 3PIN 3.5MMIn/Out Jacks
1350-1560-NDLED 3MM BLUE DIFFLED Blue
1226-3104-NDKNOB MATTE .50"DIA 6MM SHAFTKnob
Digi-Key Parts list with Vishay/Dale Resistors:
Code:
QtyPart NumberDescriptionCustomer Reference
==========================================================================
1P12383-NDCAP 220UF 25V ELECT FM RADIALC1
2495-1119-NDCAP 1.0UF 63V METAL POLYC2
2alt478-3367-NDCAP POLYFILM BOX 1.0UF 63V 5%C2
2alt478-3375-NDCAP POLYFILM BOX 1.0UF 63V 10%C2
2alt495-2470-NDCAP 1.0UF 63V METAL POLYC2
2alt495-2822-NDCAP 1.0UF 10% 63V METAL POLYC2
2alt399-5443-NDCAP FILM MKT 1UF 63VDC 5MMC2
2CMF100KQFCT-NDRES 100K OHM 1% 50PPM 1/4WR2
2CMF2.00KQFCT-NDRES 2.00K OHM 1% 50PPM 1/4WR3 Gain 6
2CMF10.0KQFCT-NDRES 10.0K OHM 1% 50PPM 1/4WR4
2CMF49.9QFCT-NDRES 49.9 OHM 1% 50PPM 1/4WR5
1CMF4.02KQFCT-NDRES 4.02K OHM 1% 50PPM 1/4WRLED
1ED90032-NDIC SOCKET 8 PIN .300 GOLDSocket
1OPA2227PA-NDIC DUAL PRECISION OPAMP 8-DIPOp-Amp
1296-1994-1-NDIC 1/2 RAIL VIRTUAL GRND TO-92Virtual GND
2232K-NDSTRAP BATT ECON 9V I STYLE 4"LD9v Batt Straps
2CP1-3533-NDCONN JACK STEREO R/A 3PIN 3.5MMIn/Out Jacks
1350-1560-NDLED 3MM BLUE DIFFLED Blue
1226-3104-NDKNOB MATTE .50"DIA 6MM SHAFTKnob
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post #2 of 108
8/21/07 at 7:02pm
cost per board? s/h?
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post #3 of 108
9/7/07 at 1:33pm
Thread Starter 
prices in 1st post now
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post #4 of 108
9/16/07 at 1:05am
Thread Starter 
uppy =)
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post #5 of 108
9/16/07 at 2:49pm
I'm interested in purchasing 2-3 of these to introduce my friends into the world of audiophile.

I have a few questions though...

-All I need to get is some ALPS RK097 and LED lights and I'll be able to build CMOY Amps?
-I'm assuming I will have to put these together?
-How is the actual audio quality of these? Are there any extra parts I should consider looking at to improve the quality without paying a ton?
-Do you have any pics of the "package" parts kit?
-Any other advice?

Last night I was trying to get together parts off Newark to make one but had a problem with some listed on the guide not being available anymore. This seems like the perfect way for me to make a small portable amp for cheap!
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post #6 of 108
9/16/07 at 3:26pm
I assume you'll have to purchase the items on the Bill of Materials listed above. It looks like a solid little cmoy and definitely a step up from most portable audio players internal amps. I'm not sure if its an introduction to audiophilia, but its certainly a decent starting point for amp building, and a point in the right direction cmoys are fun and educational to build. definitely recommended. if you're using an ipod or the sorts, you'll need to buy or build a line out dock too, otherwise you'll just be amplifying the internal amplifiers characteristics, the exact ones the cmoy does a better job at amplifying to begin with. ipod docks are pretty easy to do too if you have a steady hand.
as for extra parts to improve it.. well, cmoy is introductory. if you're going to be spending a bunch more, there are other amplifier topologies you should be looking at, but you characteristics (detailed, laid back, punchy, etc etc..), so you can find something you like.
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post #7 of 108
9/17/07 at 4:00am
Thread Starter 
Quote:
Originally Posted by Corbet View Post
I'm interested in purchasing 2-3 of these to introduce my friends into the world of audiophile.

I have a few questions though...

-All I need to get is some ALPS RK097 and LED lights and I'll be able to build CMOY Amps?
-I'm assuming I will have to put these together?
-How is the actual audio quality of these? Are there any extra parts I should consider looking at to improve the quality without paying a ton?
-Do you have any pics of the "package" parts kit?
-Any other advice?

Last night I was trying to get together parts off Newark to make one but had a problem with some listed on the guide not being available anymore. This seems like the perfect way for me to make a small portable amp for cheap!
1. You need to order the parts listed on Digi-Key or find similar parts from Mouser or whoever.
2. You'll need to order a Alps RK097 from Tangent or amb
3. Yes you'll need to put it together..unless you convince me otherwise
4. All parts listed (minus the Alps) should be about $17 from Digi-Key (but you'll have to pay $5 extra if order is < $25 USD)
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post #8 of 108
9/17/07 at 4:03am
Thread Starter 
I might order some Alps RK097's in bulk..for EZ'er ordering and lower cost you over all. So all you'll have to order is the parts from Digi-Key or whoever.
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post #9 of 108
10/3/07 at 4:26am
Thread Starter 
uppy
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post #10 of 108
10/20/07 at 12:05am
Thread Starter 
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post #11 of 108
10/31/07 at 4:23am
Thread Starter 
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post #12 of 108
11/1/07 at 3:00am
Very cool! Would this work out well for my first time cmoy build? Considering everything is labeled, I would assume it might be easier than the Tangent's recommended ratshack board.
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post #13 of 108
11/30/07 at 8:57am
Thread Starter 
Wow, sorry for the late reply.

Yes this board is labed, and is much EZ'e rthan tangents RS protoboard. I ship this with a Digi-Key BOM (bill of materials), and diagram of where to drill the holes in a mint tin.
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post #14 of 108
12/11/07 at 5:42am
Thread Starter 
Xmass Special, $ shipped US & CAN, add $ for each extra board.

Sale is over
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post #15 of 108
12/11/07 at 2:23pm
Can this board use with one 9V operated?
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