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HP-21 - Crazy numbers
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05-02-2019, 02:05 PM
Post: #8
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RE: HP-21 - Crazy numbers
(04-29-2019 06:16 AM)BusyCalc Wrote: I also had this impression when I restored an HP-65 and tried recording magnetic cards. The first 10-20 attempts were unsuccessful but suddenly, it started to record. I read then that a weak capacitor wouldn't filter the noise of the amplifier and make impossible to record a card. I'm having the same problem on an HP-65, waves for channels RA and RB are clean and in fact it reads every card Waves for channel WA is clean, but wave for channel WB is dirty and it doesn't record a single card Other than keep trying to record did you experiment anything that is worth ? Thanks for help !!! Edoardo & Alberto |
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HP-21 - Crazy numbers - BusyCalc - 04-25-2019, 07:20 AM
RE: HP-21 - Crazy numbers - Maximilian Hohmann - 04-25-2019, 12:32 PM
RE: HP-21 - Crazy numbers - BusyCalc - 04-29-2019, 06:16 AM
RE: HP-21 - Crazy numbers - albertofenini - 05-02-2019 02:05 PM
RE: HP-21 - Crazy numbers - Geoff Quickfall - 04-30-2019, 12:56 AM
RE: HP-21 - Crazy numbers - BusyCalc - 05-02-2019, 08:56 AM
RE: HP-21 - Crazy numbers - Maximilian Hohmann - 05-02-2019, 10:21 AM
RE: HP-21 - Crazy numbers - BusyCalc - 05-02-2019, 01:49 PM
RE: HP-21 - Crazy numbers - BusyCalc - 05-02-2019, 05:04 PM
RE: HP-21 - Crazy numbers - albertofenini - 05-02-2019, 05:09 PM
RE: HP-21 - Crazy numbers - BusyCalc - 05-04-2019, 09:38 PM
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