found what I believe are a few vrc drum pickup heads too bad photos don't post here interested parties,can email

[Ed Sharpe]

these probably get proc control vec drums

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On Saturday, May 12, 2018 Chuck Guzis via cctalk <cctalk at classiccmp.org> wrote:
Head-per-track drums were used on airborne radar setups as a
non-computer use. John Meshna used to advertise military surplus ones,
complete with 400Hz spindle motor.

I was tempted at the time to get one, but was warned that the surplus
ones are rarely functional.

--Chuck