Akai - GX-4000D - 18cm 錄音機
編號 30345673
Nakamichi - 620 + 630 - 多種型號 - FM調諧器前置放大器+功率放大器
編號 30345673
Nakamichi - 620 + 630 - 多種型號 - FM調諧器前置放大器+功率放大器
NAKAMICHI 620 + 630 - made in Japan
Nakamichi 620 Power amplifier :
Power output: 100 watts per channel into 8Ω (stereo)
Dimensions: 400 x 189 x 248mm
Weight: 12.5kg
The 620 is closer to a pure class B amplifier than anything else that has gone before. The first stage of the 620 is a differential amplifier with "current mirror" loading. The final section of the amplifier is a four stage push-pull circuit.
All four stages are full complementary direct coupled, and each stage employs a unique double NPN/PNP combination for the positive and negative halves. This design eliminates the errors inherent in even the most carefully matched pairs of NPN/PNP output devices.
Nakamichi 630 FM Tuner preamplifier :
Dimensions: 400 x 170 x 237mm
Weight: 7kg
Both items are tested and working : A-ZGF269671
Pictures are part of description.
Shipping by DHL.