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AMP2-T assembly instructions. © 41Hz Audio / www.41hz.com Revision 1.0T boards

If you are not familiar with soldering surface mount components, it is recommended that you do

some test soldering on a separate scrap piece of material. Preferably buy some simpler kit or

components and practice on these.

Tools needed

Assembly of the kits requires the usual set of electronics working tools; soldering iron, wire

cutter etc.

The boards for AMP2 are triple weight, double sided copper. This requires quite a powerful

soldering iron to heat. Especially the components and pads that are connected to the ground

plane require substantial heating. A 50W soldering iron is the very minimum recommended.

Preheating the board to about 100ºC will help a lot.

If the heat slug of the TP2350B chip is to be soldered to the board (typically for AMPs used at

very high power) you will also need access to a solder oven or similar (more about this in

APPENDIX 3). Some information on how to solder SMT components is available on the web

site.

The PCB, a summary

5. Power MOSFETs

7. Right channel

output and output

filters

6. Left channel

output and

output filters

2. MOSFET driver with

current / voltage sensing

4. Power supply rail

1. Analogue input section

3. Gate drive resistors & current sensing

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