CGS breadboard: Difference between revisions
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* If you have a power bus that uses the MOTM standard for +/-15/+5, you can install a six pin 0.156 header, three Ferrite beads and three 10uF decoupling capacitors. |
* If you have a power bus that uses the MOTM standard for +/-15/+5, you can install a six pin 0.156 header, three Ferrite beads and three 10uF decoupling capacitors. |
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* If you only have +/-12 volt or +/-15 volt power available, install a four pin 0.156 header, two Ferrite beads, two 10uF decoupling capacitors, two 100n capacitors and a 78M05 (or similar) regulator. Refer to the photographs for component positioning. |
* If you only have +/-12 volt or +/-15 volt power available, install a four pin 0.156 header, two Ferrite beads, two 10uF decoupling capacitors, two 100n capacitors and a 78M05 (or similar) regulator. Refer to the photographs for component positioning. |
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== Parts list == |
== Parts list == |
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{|style="border:1px solid #BBB; display:inline-table; margin-right:25px;" |
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| colspan="2"|Full module using 4 pin power |
| colspan="2"|Full module using 4 pin power |
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| Part||align=right|Quantity |
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| colspan="2"|PCB used with 6 pin power |
| colspan="2"|PCB used with 6 pin power |
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| Part||align=right|Quantity |
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| CGS124 VER1.0 PCB||align=right|1 |
| CGS124 VER1.0 PCB||align=right|1 |
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== See also == |
== See also == |
Revision as of 21:44, 15 November 2018
CGS124 is the CGS breadboard a module prototyping PCB.
Construction
Color legend (assuming +/-15 volts).
- Red: +15 volts
- Green: 0 volts/ground
- Pink: +5 volts. Note that pin 16 of the SO-16 is preconnected to the +5 bus.
- Orange: Free bus. Use it for clock signals or something else that you wish to distribute along the length of the PCB.
- Blue: -15 volts
The board can be used with either +/-12 volts or +/-15 volts, although the power connectors used are usually associated with +/15 volts.
On the rear of the PCB are various surface mount pads. These are to allow connection to the rails and IC pins under the SMT packages. There are also four pads associated with decoupling capacitors, allowing 1206 SMT decoupling capacitors to be used in these locations.
There are several power supply configurations possible with the board. Of note is the two variants of +5.
- If you have a power bus that uses the MOTM standard for +/-15/+5, you can install a six pin 0.156 header, three Ferrite beads and three 10uF decoupling capacitors.
- If you only have +/-12 volt or +/-15 volt power available, install a four pin 0.156 header, two Ferrite beads, two 10uF decoupling capacitors, two 100n capacitors and a 78M05 (or similar) regulator. Refer to the photographs for component positioning.
Parts list
This is a guide only. Parts needed will vary with individual constructor's needs.
Full module using 4 pin power | |
Part | Quantity |
Capacitors | |
---|---|
100nF (=0.1uF) Ceramic Monolithic | 8 |
10uF electrolytic | 2 |
Semi's | |
78M05 or sim. | 1 |
Misc. | |
Ferrite bead | 2 |
MTA-156 connector 4 pin | 1 |
MTA-156 header 4 pin | 1 |
CGS124 VER1.0 PCB | 1 |
PCB used with 6 pin power | |
Part | Quantity |
Capacitors | |
---|---|
100nF (=0.1uF) Ceramic Monolithic | 6 |
10uF electrolytic | 3 |
Misc. | |
Ferrite bead | 3 |
MTA-156 connector 6 pin | 1 |
MTA-156 header 6 pin | 1 |
CGS124 VER1.0 PCB | 1 |
Notes
- 330R refers to 330 ohms. 100n = 0.1 uF, etc.
- The module will work on +/-12 volts or +/-15 volts.
- PCB dimensions are 6" x 2" with 3mm mounting holes 0.15" in from the edges.
See also
References
- Breadboard / Prototyping board for music synthesizers. (archived) by Ken Stone, 2013, with permission of the author
External links
- CGS Synth discussion group, for discussion of locating parts, modifications and corrections etc.