DO IT YOURSELF POWER TUBE AMPLIFIER
CAUTION! HIGH VOLTAGE!
Observe safety precautions when working with high voltage!
"Golden Middle" reserves the right to make changes in products
not affecting the basic technical characteristics.
Hi-Fi SE AMPLIFIER "8888 AMP" 8 Ohm 9 W in triode
TECHNICAL SPECIFICATIONS:
SE Class A
Tubes:
KT88 JJ (output); ECC88 (driver), 5C3S (rectifier);
Input signal level: 775 mV
Output power raiting (1 KHz): 9 W
Normal load resistance: 50 KOhm
Min load resistance: 4 Ohm
Normal power rating: 8 Ohm
S / H not less -78 Db
Frequency response @ 1 Db 20 Hz - 20 KHz
THD @1 W 8 Ohm: not over 0,17%
THD @8 W 8 Ohm: not over 2,5%
Power rating: 85 W / 1 channel
Frequency response 1 W: 18 Hz - 30 KHz
DIY "8888 AMP KIT # 1" by point-to-point assembling :
Output transformer x 2 pcs;Power transformer x 1 pcs;
Choke x 1 pcs;
Tubes : KT88 JJ (output) õ 2 pcs ; ECC88 (driver) õ 2 pcs, 5C3S / 5U4G (rectifier) õ 1 pcs ;
Ceramic sockets for all vacuum tubes ;
Input and output sockets ;
Electrolityc capacitors NICHICON, JAMICON;
Resistors MLT, BC, ULI.
Full curcuit diagram.
All tubes are are tested up for usage in this amplifier.
All transformers and chokes have multi-colored outputs.
Color of each output is signed and specified on the circuit (it is impossible to confuse).
"8888 AMP" curcuit diagram
DIY "8888 AMP KIT # 2" (in monoblocks) by point-to-point assembling :
Output transformer x 2 pcs;Power transformer x 2 pcs;
Choke x 2 pcs;
Tubes : KT88 JJ (output) õ 2 pcs ; ECC88 (driver) õ 2 pcs, 5C3S / 5U4G (rectifier) õ 2 pcs ;
Ceramic sockets for all vacuum tubes ;
Input and output sockets ;
Electrolityc capacitors NICHICON, JAMICON;
Resistors MLT, BC, ULI.
Full curcuit diagram.
All tubes are are tested up for usage in this amplifier.
All transformers and chokes have multi-colored outputs.
Color of each output is signed and specified on the circuit (it is impossible to confuse).
"8888 AMP" in monoblocks curcuit diagram
