HP-21 Disassembly Help...

Threaded Mode | Linear Mode

HP-21 Disassembly Help...

03-30-2016, 09:12 PM (This post was last modified: 03-30-2016 09:14 PM by BobVA.)

Post: #22

BobVA

Senior Member

Posts: 457
Joined: Dec 2013

RE: HP-21 Disassembly Help...

(03-30-2016 12:54 AM)Katie Wasserman Wrote: Also..... I never realized that the HP-21 doesn't have holes in the PCB, I guess I never had to clean the keys on one of them.

I was just inside my two, and they *both* have the holes - photo here. Maybe something to do with production dates?

« Next Oldest | Next Newest »

Messages In This Thread

HP-21 Disassembly Help... - Jeff_Kearns - 03-26-2016, 07:06 PM

RE: HP-21 Disassembly Help... - rprosperi - 03-26-2016, 07:11 PM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 03-26-2016, 07:23 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-26-2016, 09:28 PM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 03-26-2016, 11:07 PM

RE: HP-21 Disassembly Help... - Katie Wasserman - 03-27-2016, 03:11 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-27-2016, 04:36 PM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 03-27-2016, 09:52 PM

RE: HP-21 Disassembly Help... - Dave Frederickson - 03-27-2016, 11:59 PM

RE: HP-21 Disassembly Help... - Katie Wasserman - 03-30-2016, 12:54 AM

RE: HP-21 Disassembly Help... - PANAMATIK - 03-30-2016, 04:45 AM

RE: HP-21 Disassembly Help... - Dave Frederickson - 03-30-2016, 04:09 PM

RE: HP-21 Disassembly Help... - BobVA - 03-30-2016 09:12 PM

RE: HP-21 Disassembly Help... - BruceH - 03-31-2016, 10:42 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-30-2016, 05:12 AM

RE: HP-21 Disassembly Help... - d b - 03-30-2016, 03:42 PM

RE: HP-21 Disassembly Help... - PANAMATIK - 03-30-2016, 03:54 PM

RE: HP-21 Disassembly Help... - Didier Lachieze - 03-30-2016, 04:00 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-30-2016, 04:01 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-30-2016, 04:54 PM

RE: HP-21 Disassembly Help... - Dave Frederickson - 03-30-2016, 05:58 PM

RE: HP-21 Disassembly Help... - PANAMATIK - 03-30-2016, 07:30 PM

RE: HP-21 Disassembly Help... - HP67 - 03-30-2016, 05:58 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-30-2016, 11:48 PM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 03-31-2016, 05:10 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 03-31-2016, 05:46 PM

RE: HP-21 Disassembly Help... Jeff, you there? - Geoff Quickfall - 04-01-2016, 05:18 PM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 04-02-2016, 01:23 AM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-02-2016, 02:49 AM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 04-10-2016, 06:31 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-10-2016, 06:51 PM

RE: HP-21 Disassembly Help... - Jeff_Kearns - 04-10-2016, 06:57 PM

RE: HP-21 Disassembly Help... - Steve Simpkin - 04-10-2016, 07:23 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-10-2016, 07:00 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-10-2016, 08:26 PM

RE: HP-21 Disassembly Help... - PANAMATIK - 04-17-2016, 04:36 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-17-2016, 05:31 PM

RE: HP-21 Disassembly Help... - PANAMATIK - 04-17-2016, 06:59 PM

RE: HP-21 Disassembly Help... - PANAMATIK - 12-03-2016, 03:42 PM

RE: HP-21 Disassembly Help... - EdS2 - 06-25-2020, 07:25 AM

RE: HP-21 Disassembly Help... - PANAMATIK - 06-26-2020, 07:09 AM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-18-2016, 03:18 PM

RE: HP-21 Disassembly Help... - Katie Wasserman - 04-18-2016, 03:45 PM

RE: HP-21 Disassembly Help... - Geoff Quickfall - 04-18-2016, 04:18 PM

User(s) browsing this thread: 8 Guest(s)