Brand new, only assembled and tested modules, as on photos, two with red PCB, two with green.
On red PCB gain and feedback resistors are 0,01% tolerance, suitable for parallel or balanced version.
Price 20 USD per board plus shipping.
Regards
P.S. All four boards are standard 2 x 60 W stereo amplifiers, made with schematics and component values posted on T.I. LM4780 datasheet. The only difference with red boards is that gain/ feedback resistors are 0,01% tolerance, so the both channels are precisely matched which is necessary for parallel operation.
On red PCB gain and feedback resistors are 0,01% tolerance, suitable for parallel or balanced version.
Price 20 USD per board plus shipping.
Regards
P.S. All four boards are standard 2 x 60 W stereo amplifiers, made with schematics and component values posted on T.I. LM4780 datasheet. The only difference with red boards is that gain/ feedback resistors are 0,01% tolerance, so the both channels are precisely matched which is necessary for parallel operation.
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Last edited:
LM4780 boards still available. Tested, working perfectly. Also some nice matching power supplies; with 2 x new Nichicon 22000 uF capacitors. And..some spare LM4780 chips.
Good price and shipping, send me a P.M. if interested.
Regards
Good price and shipping, send me a P.M. if interested.
Regards
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Postage (priority with tracking) would be 6 USD.
This is very reasonable.
Regards
Sachin
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