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Posts by Jeff Keyzer

Another @mightyohm.bsky.social kit in the wild

6 months ago 4 1 0 0

AVR HV Rescue Shield Sale – 25% off at Amazon while supplies last: https://wp.me/pioCd-4cc

6 months ago 1 0 1 0

Thanks for coming to my talk! Great to see you at Teardown.

9 months ago 1 0 0 0
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Anyone looking for a moderator? ☢️
www.govdeals.com/en/asset/650...

9 months ago 4 0 0 0

Teardown 2025: Useful Tools for Your Electronics Workshop: https://wp.me/pioCd-4bJ

9 months ago 2 0 0 0
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AVR HV Rescue Shield The MightyOhm AVR HV Rescue Shield is a high voltage fuse programmer for Atmel AVR microcontrollers.

MightyOhm AVR HV Rescue Shield Kits are on sale this week! Sale ends Sunday. www.amazon.com/MightyOhm-AV...

10 months ago 3 0 0 0
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Working on something different today. One jump ring broke off of this stained glass (not mine) and while I was tempted to try and repair it with rosin core solder I decided to get the proper solid core solder and acid? flux.

1 year ago 5 0 1 0
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I see a couple rolls of 2mm on Amazon but for delicate repair work this is still huge.

1 year ago 0 0 0 0
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Stained glass folks. Why is solid core solder for stained glass absurdly large diameter? 3mm or 1/8" seems to be the standard.

1 year ago 0 0 2 0
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RIP Chris Knight 😢 #realgenius #valkilmer

1 year ago 8 1 1 0
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Check out this fondue set by Swiss Toolmaker PB Swiss. I feel like every major tool company has a couple items like this.

1 year ago 2 0 3 0
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King county also showing zero alerts. alerts.weather.gov/search?zone=...

1 year ago 0 0 0 0
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1 year ago 0 0 1 0
NWS Alerts

Given these recent predictions from NWS Seattle, why are there still no active NWS alerts for Seattle? alerts.weather.gov/search?zone=...

1 year ago 0 0 1 0
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Why don't modern CAT6 keystones have strain relief for the cable? Is this style of keystone considered acceptable for enterprise networking? Who makes enterprise-grade keystones? This one is from Cable Matters. For years Monoprice keystones had a zip tie but newer version doesn't.

1 year ago 1 0 1 0
How to Repartition Your Hard Drive

I wrote this 24 years ago, on my birthday. wavelen.com/pics/hd/inde...

1 year ago 4 0 0 0
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Am I missing any of the other major (reputable) electrolytic capacitor brands?

1 year ago 0 0 0 0
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Also can someone tell Illinois Capacitor that this table isn't a substitute for a series chart?

1 year ago 2 0 1 0
reference:electronics:capacitors:electrolytic [MightyOhm Wiki]

Working on something today. I've been doing a lot of recapping recently and was getting tired of Googling pdfs. mightyohm.com/wiki/referen...

1 year ago 6 3 2 0

That's a great question! I'd argue no... not "gas tight". I need to look into this.

1 year ago 2 0 0 0
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You know how those cheap Chinese alligator clip leads have folded and crimped wires? Turns out the American ones are like that too. I'm surprised to see this instruction sheet from Mueller. Can't we get an alligator clip that has a proper double crimp for conductor + insulation?

1 year ago 2 0 2 0

I guess? Two pihole servers going 24x7 for years. Haven't had an SD fail yet.

1 year ago 0 0 0 0

I find it very disappointing and surprising that there is still no officially supported in-situ upgrade path for Raspberry Pi OS. They expect you to write the new version of the OS to an SD card and copy over your config changes. Coming from Debian/Ubuntu, this is insane.

1 year ago 13 0 2 0

Yes, I'm learning this. However, when the leads are very close to the PCB it can be tricky to get the nozzle onto the end of the lead without damaging the PCB!

1 year ago 0 0 0 0
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I'm not a fan of PCBs with leads that are bent tightly against the PCB. Makes desoldering difficult! Sony loved this technique and used it on lots of boards. Sometimes I just cut the part off and remove the leads one by one!

1 year ago 10 0 2 0
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When did it become so difficult to sell used books on Amazon?

1 year ago 0 0 1 0
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Hey, my Geiger Counter kit is now available to order from Digikey www.digikey.com/en/products/... thanks to @adafruit.com!

1 year ago 4 0 1 0
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HP Agilent 8753D Firmware Upgrade Kit Revision 6.14 08753-60185 | eBay This is a reproduction of HP Firmware Upgrade Kit 08753-60185. The kit includes all of the components you'll need to upgrade your 8753D series VNA to firmware version 6.14. This is the latest firmware...

Is anyone looking for a firmware upgrade kit for their HP 8753D? I have just one left and due to the difficulty sourcing EPROMs I will not be making more. www.ebay.com/itm/16664817...

1 year ago 2 0 0 0
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Here's the bottle.

1 year ago 1 0 0 0