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150 khz Tape Bias oscillator based on AD537JH

Question asked by smilan on Jun 3, 2017
Latest reply on Jun 6, 2017 by TylerK

Hello,

I have an old Tascam 85-16b reel to reel tape machine.
I have a problem of low eraseing causing from a misbehavior of the current master oscillator that producing unstable frequency of 150 - 175 khz (instead of stable frequency of 150 khz).
My question is, can I replace the original oscilator with an AD537JH?
As you can see at the attached schematic, I need a stable frequency of 150 khz with output voltage of +15V /-15V
Please advice.

schematic 1

schematic 2

schematic 3

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