PA1X200 200W Power Amplifier Kit
Description
The PA1X200 amplifier kit provides the builder with instructions covering how to build the kit as well as the underlying theories behind it. Some of the topics covered include boost and invert DC/DC converter theory as well as the DC/AC converter theory. The finished unit does not include a case (the builder needs to supply it). This kit is an updated version of the kit featured in the
April 1997 issue of Electronics Now.
Features
- 200W RMS into a 4 ohm load
- Input controls and terminals are located on board with the option of external controls.
- High efficiency, 69% into a resistive load
- Bridged output suppresses 2nd harmonic distortion
- Low standby current 0.6A DC @ 12V
Specifications
| Input Voltage |
12VDC to 18VDC |
| Input Current |
0.6A (standby) to 20A |
| Input connector |
20 pin 0.1" dual row header |
| Input Level |
2Vpp |
| Output Power |
200W RMS |
| Output Distortion |
1% THD at 200W 1KHz |
| Frequency Response (3dB points) |
2Hz to 22KHz |
| Output Noise |
TBD |
| Output Protection |
Ground fault on output |
| DC offset |
25mV max |
| Size |
18cm x 15cm x 4.5cm |
Product Status
Kit and all parts are in stock.
Ordering Information
Kit price for part number ASPA1X200-04:
- 1 pcs: US$100.00 each
- 100 pcs: US$97.00 each
- 1000 pcs US$78.00 each
- Shipping Weight: 2 lb/1 Kg
We have an American distributor,
Digital Amplifier Company, for orders from the US. They can offer you reduced shipping rates and sending it through them prevents customs hassles.
Kit includes assembly instructions, PCB, and all parts that are installed on the PCB. Kit complexity is 175 parts (approx). PTH technology except for 3 coils. Coils are large so soldering is not hard. Debugging can be difficult due to feedback loops in the design. Can be built without an oscilloscope but it is helpful.
Input connector pinout
20 Pin 0.1" Dual Row Header
| Pin |
Function |
| 1 |
Input + |
| 3 |
Input - |
| 5 |
Gain control + |
| 7 |
Gain control wiper |
| 9 |
Gain control - |
| 11 |
-15V output |
| 13 |
-3V output |
| 15 |
Fault |
| 17 |
not used |
| 19 |
not used |
| 2,4,6,8,10,12,14,16,18,20 |
GND |
Output Connector Pinout
#6 Screw Terminals
| Pin |
Function |
| 1 |
SUPPLY |
| 2 |
GROUND |
| 3 |
OUT+ |
| 4 |
OUT- |