The differences that exist in this circuit form with the Audio Line High-End Preamplifier with ICs
are small and they are focused in the number of inputs and in the suppression Tape Monitor
choice [BLOCK B]. Thus is suppressed the
switch S3. The RL6 undertakes the input choice Line 5 and connected the input selector in
place 5. Led D5 was moved also this in the place 5 of input selector. Also was connected the contact 5 of S1B in the
line +VD. In the sound circuit [BLOCK A] added two resistances the RA and RB in the input
of record stage.