1541 CIRCUIT THEORY
Write Amplifier Circuits
During a write operation, B must be "high". This forward biases Q7 and CR14.
If _B goes "low", Q3 and Q6 become forward biased. If Q goes "low", Q5 and
CR15 become forward biased, passing current flow through R/W 1. If _Q goes
"low", Q4 and CR18 become forward biased, passing current flow through R/W
When a write operation occurs, the ERASE coil is energized by forward
biasing Q6. This demagnetizes the outer edges of the track, preventing data
on one track from bleeding into the next track.
This page has been created by Sami Rautiainen.
Last updated April 18, 1998.
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