AM-90 amplifier board Refer to the Krell circuit DIY HiFi fever-level MJ15024 MJ15025 AB class 200W + | Электроника

AM-90 amplifier board Refer to the Krell circuit DIY HiFi fever-level MJ15024 MJ15025 AB class 200W + | Электроника

AM-90 HiFi fever-level power amplifier board 

Reference Krell classic circuit combines the advantages of all aspects of the design .Input stage using low noise tube C2240 A970; Promotion level with the import of ON Semiconductor MJE15033 MJE15032 With two pairs of imported gold seal tube MJ15024  MJ15025  .A channel 4 tube, perfect match .

Amplifier board Monolithic size: 283MM * 90MM 

Input voltage: DC positive and negative 35V-65V (DC dual voltage three lines) 

Transformer requirements above 400W and power supply rectifier (to be purchased by yourself) 

Output power: AB class 200W + 200W , 

Class A maximum adjustable: 50W 4-8 ohm , Adjust yourself  ! ( Need to have a large enough heat sink, or will be too hot and burned , ) 

Accessories: 8 screws with fixed heat sink, and a wiring diagram. 

Each piece of board (one channel) consists of two pairs of imported ON Semiconductor sealed MJ15024 MJ15025, a channel 4 tube, the output current doubled, the intensity and control of the excellent, large dynamic playback easily .

Push the use of imported MJE15033 MJE15032

Full copper feet 1W metal imitation resistance, filter capacitor imports Nikon, and with a large number of German red Wei Ma fever capacitor, all the fever components