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HP-65 card reader problems
02-02-2020, 09:00 AM
Post: #3
RE: HP-65 card reader problems
Thanks Tony

I have rotated the cam in small increments over a full 360 deg. It does alter the current draw when I apply a voltage across the motor directly as expected. The main issue I think is that I cannot see any real voltage at the motor terminals when Insert a card ? The drive shaft does move axially but won't pull the card and I only measure some 50mv across the motor terminals ?

Richard
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Messages In This Thread
HP-65 card reader problems - coitboy2000 - 02-02-2020, 01:59 AM
RE: HP-65 card reader problems - teenix - 02-02-2020, 06:03 AM
RE: HP-65 card reader problems - coitboy2000 - 02-02-2020 09:00 AM
RE: HP-65 card reader problems - teenix - 02-02-2020, 09:44 AM
RE: HP-65 card reader problems - teenix - 02-02-2020, 11:38 AM
RE: HP-65 card reader problems - teenix - 02-04-2020, 02:46 PM
RE: HP-65 card reader problems - teenix - 02-16-2020, 07:14 AM
RE: HP-65 card reader problems - teenix - 02-16-2020, 10:16 AM
RE: HP-65 card reader problems - teenix - 02-16-2020, 10:33 AM
RE: HP-65 card reader problems - AndiGer - 02-16-2020, 11:09 AM
RE: HP-65 card reader problems - teenix - 02-16-2020, 11:42 AM
RE: HP-65 card reader problems - AndiGer - 02-23-2020, 06:47 PM
RE: HP-65 card reader problems - teenix - 02-23-2020, 09:19 PM



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