The best JLH 1969 class A power amplifier
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Classic 10W JLH 1969 John Linsley Hood Stereo Class A Amplifier DIY Kit,The Best JLH Power Amp
The DIY kit include two channels,Power transistor is 2N3055 from MOTOROLA, DALE resisotr,Even insulation mica sheet for heatsink and screws, Easy enough DIY project but the sound is damn good...
Note: 2N3055 (MOTOROLA) is used but tested, Or you can ask for NEW 2N3055 which made in MALAYSIA, Just note when processing payment.
Power bandwidth (10W) 30Hz - 70kHz
THD = 0.05% (50Hz - 20kHz @ 9W, 0.1% @ 1kHz and 10W)
Quiescent current = 1A
Power supply: DC 16V to 36V
Adjustment after assembly
1. 100K variable resistor is for neutral point, Measure the voltage on positive of 2200UF output capacitor and turn the variable resistor to set the voltage equal to half of the power voltage
2. 1K raviable resistor if for quiescent current, 1-2A is the best, You can series a current meter to adjust.
3. Pay attention to the insulation between heatsink and pins of output transistor, Or it might blow.
Two versions with different components
1. Regular version
PHILIPS BC 2200UF *2 -- Output capacitor
Panasonic FC220UF *8
2. Luxury version
ROE 2200UF Gold axial *2
Panasonic FC220UF *6
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