[Boatanchors] CQ Hickok model 600 tube tester users

[Doug Hensley]

Working on a vintage TS-505 D/U VTVM.  Two of the tubes are 85v regulators called 5651WA.  I'm told the OG3 (or is it 0G3 ?) is a sub.

But my Hickok 600 literature does not list either the 5651WA or the OG3.  Has anyone found a setting for this tube for the Hickok 600?  Strangely, I'm not finding the popular OA2 or OB2 either on the 600 charts..

QSL if you can advise.

Doug W5JV







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