The Achilles heel of Atom/Vanrock a/e-101 class machines seems to be the cutter head and its limited frequency range of 60hz - 8k.
There is also a significant boost along the midrange starting around 1.2k (may vary by cutter head).
While you can achieve playable "DJ" quality cuts with practice and investment, it is difficult to get consistently good cuts.
Many variables come into play like the spring controlled weight or amount of current going to heating wire.
I know several members of the forum have expertise and experience repairing, rebuilding and modifying all types of cutter heads and with electronics in general.
My hope is we could collectively study this cutter head and if lucky come up with suggestions for improvements, I realize you would need it front of you to test with some very specific test instruments but for now photos will have to do.
Hopefully you find these photos helpful.
![Image](https://i.postimg.cc/qhqmtv00/IMG-3506.jpg)
![Image](https://i.postimg.cc/sQHX3wfK/IMG-3537.jpg)
Blue: + Vdc (reads 11.5vdc from PS)
Brown: Grnd
White: amplifier -
Red: amplifier +
The blue & brown wires connect to the power supply board.
The red & white wires carry the signal from the power amp board directly to the cutting head coils.
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