— Projects & other fun things
I build things, then I write down the way I got there.
Electronics repair, woodworking, CNC and turning — documented honestly, with the part numbers, the mistakes, and the schematics.
All projects
Latest builds
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Keithley 2000 Fix and Upgrade
Fix I detected a huge misalignment in the AC 750V range – you could even detect it when…
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Tektronix 577 Safety Cover
Safety? The Tek 577 can produce up to 1.6kV collector voltage with a fair amount of current, so…
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A long wanted Tektronix 577
How did I get it I was searching for a curve tracer since a couple of years, but…
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Keithley 2612A Breakout Box
What is a Keithley 2612A Keithley 2612A is a dual channel SMU, a source measurement unit. It is…
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HP 4957A – Part 3
Finishing the repair For finishing everything I have replaced the temporary cap with the exact replacement which is…
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HP 4957A – Part 2
Where do we continue? First: the battery The battery in my 4957A was completely empty and had first…
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HP 4957A – Part 14951C, HP
Uhh not pretty anymore A couple of days ago my 4957A arrived from Frances. It worked for a…
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HP 4951C – Part 3
Fixing the signs of time Finally I got everything delivered. A couple of caps, a new, hopefully quieter…
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HP 4951C – Part 2
Hacking Basic I/O Map What you can see in the picture above is my current version of the…