This is quite a unique looking amp. It was built using a kit from Chipamp.com, There aren’t very many wood amps around… Hopefully heat isn’t a problem I would hate to see the outcome if it was.
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Chipamp.com has some simple to build DIY audio amp kits. This one is a their LM4780 Dual Mono Kit. This is what you get in the kit:
“LM4780 Dual Mono Kit Contents
1 PCB set, consisting of 2 amplifier and 2 rectifier boards.
2 LM4780
6 22 kohm 0.5w compact metal film resistors
4 1 kohm 0.5w compact metal film resistors
4 680 ohm 0.5w compact metal film resistors
2 10 kohm 0.5w compact metal film resistors (mute)
4 0.1 ohm 3w Dale LVR3 power resistors (output)
4 2.7 ohm 2w Panasonic metal film resistors (zobel)
4 0.1 uf BC polypropylene cap (zobel)
4 1500 uF 50v Panasonic FC Capacitors
16 MUR860 On Semiconductor Diodes
4 10 uF Panasonic FC Capacitors”
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August 29th, 2008
dear sir, good day! i would like to ask for help. i need the skemetic of LM4780 for stereo-amp design. many many thanks. please email me at sylverster_tan@hotmail.com
August 29th, 2008
Hi Tan,
You can find the datasheet of the LM4780 here.
http://www.national.com/ds/LM/LM4780.pdf