Woodstock battery modification

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Woodstock battery modification

09-12-2016, 01:01 AM

Post: #4

Nate Martin Offline

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Posts: 87
Joined: Dec 2013

RE: Woodstock battery modification

I have just been rebuilding the power circuits in a bunch of HP-21's and this looks like the substitute for batteries circuit from http://www.cs.ubc.ca/~hilpert/eec/calctd/HP21.pdf.

The Si diodes each have ~07.V drop which get you up to the 2.1-2.8V range.

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Messages In This Thread

Woodstock battery modification - AndiGer - 09-10-2016, 08:19 AM

RE: Woodstock battery modification - damaltor - 09-10-2016, 10:34 AM

RE: Woodstock battery modification - Maximilian Hohmann - 09-10-2016, 10:59 AM

RE: Woodstock battery modification - Sadsilence - 09-12-2016, 06:04 AM

RE: Woodstock battery modification - Nate Martin - 09-12-2016 01:01 AM

RE: Woodstock battery modification - Nate Martin - 09-12-2016, 01:19 AM

RE: Woodstock battery modification - rprosperi - 09-12-2016, 02:26 AM

RE: Woodstock battery modification - Nate Martin - 09-13-2016, 04:03 AM

RE: Woodstock battery modification - Adam Vaughn - 09-13-2016, 02:58 AM

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