#What is icq in a darlington problem series
Though it surfaced in the 1986 with the SU-500 and the SA series recievers The amps from 86 were still in productionĪll these amps were very well made, all had metal faces. In 1987 the V85A was added class AA discrete output with no synchro bias. V40/50/60 have discrete voltage control amps with SVI400* current drive IC that has the wheatstone resistor bridge inbuilt. These amps are not featuring synchro bias. This phased in class AA amps which have a very different setup with a voltage control amp and current drive amp with a wheatstone coupling to the speakers. Also in 86 the V40 V50 and V60 were produced. In 1986 the V7X and V10X were late additions to the series, both having computer drive discrete outputs with synchro bias. The V6X and V8X were discrete outputs with synchro bias. The V4X was computer drive and all were synchro bias with the SVI2004A power IC, this amp I consider to have the best sound. The V2X featured computer drive, earlier V2X amps were fitted with STK2038IV and others recieved the SVI2003. In this lineup the V1X introduced Technics 1st own developed hybrid IC, the SVI2003 which was a 50 watt per channel ic that had synchro bias. In 84/85 Technics had simplified the computer drive circuit with the MN1421STA being retired with a MN1404STE appearing in the new lineup except the SE-A3MK2. These were released as V303 V505 V707 and the flagship V909 again all were discrete output with the V909 having the same high current outputs. In 82/83 Technics developed computer drive in their amplifiers where a microprocessor could alter ICQ levels in the output stage calculated by signal and thermal sensing, also doubled as a protect circuit for overtemp overcurrent and some cases overinput. All these amplifiers were discrete output, with the V9 using high current outputs. In 79/80 the lineup was the V3 V5 V7 and the flagship V9. All featured the synchro bias outpit stages. The V2 and V4 were both based on STK80*0 output ICs, the V6 and V8 on transistor outputs. The first lineup of the V series consisted of V2 V4 V6 and the flagship V8.
#What is icq in a darlington problem full
The Later Z series also become full width (43cm). Their other offering was the SU-Z series (Z1 and Z2) which were not quite as wide. The SU-V series was Technics full sized HiFi line that introduced new class A circuitry in 1978.