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Jeff Keyzer @mightyohm.bsky.social · 06/09/2026

MightyOhm Geiger Counter Kits on Sale at Amazon – 20% off this week only: wp.me/pioCd-4ek

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Reposted by Jeff Keyzer

Justin K5EM @k5em.com · 27/09/2025

Another @mightyohm.bsky.social kit in the wild

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Jeff Keyzer @mightyohm.bsky.social · 23/09/2025

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

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Jeff Keyzer @mightyohm.bsky.social · 02/07/2025

Anyone looking for a moderator? ☢️ www.govdeals.com/en/asset/650...

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Jeff Keyzer @mightyohm.bsky.social · 25/06/2025

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

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Jeff Keyzer @mightyohm.bsky.social · 04/04/2025

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.

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Jeff Keyzer @mightyohm.bsky.social · 04/04/2025

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

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Jeff Keyzer @mightyohm.bsky.social · 27/03/2025

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

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Jeff Keyzer @mightyohm.bsky.social · 25/03/2025

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.

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Jeff Keyzer @mightyohm.bsky.social · 13/03/2025

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

wavelen.com

How to Repartition Your Hard Drive

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Jeff Keyzer @mightyohm.bsky.social · 12/03/2025

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

mightyohm.com

reference:electronics:capacitors:electrolytic [MightyOhm Wiki]

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Jeff Keyzer @mightyohm.bsky.social · 12/03/2025

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?

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Jeff Keyzer @mightyohm.bsky.social · 26/02/2025

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.

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Jeff Keyzer @mightyohm.bsky.social · 22/02/2025

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!

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Jeff Keyzer @mightyohm.bsky.social · 18/02/2025

When did it become so difficult to sell used books on Amazon?

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Jeff Keyzer @mightyohm.bsky.social · 14/02/2025

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

digikey.com

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Jeff Keyzer @mightyohm.bsky.social · 30/01/2025

Anyone looking for Freon-TF? This is an inexpensive source. Label on the bottle confirms it is TFTCE. Look up SDS if you are unfamiliar with handling this stuff. www.ebay.com/itm/16657923...

ebay.com

Nortronics Tape Head Cleaner QM-102 NEW, NOS, Sealed 2oz. USA Made | eBay

NORTRONICS TAPE HEAD CLEANER. Photos represent typical idem condition. MODEL: QM-102. I have not attempted to conceal any flaws, defects or information.

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Jeff Keyzer @mightyohm.bsky.social · 25/01/2025

Simichrome works amazingly well at cleaning up corroded RCA connector shells. I used a kimwipe at first but then switched to a dremel buffing wheel which quickly turned black from all the gunk that came off the connectors. I think Autosol and Flitz would work too.

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Jeff Keyzer @mightyohm.bsky.social · 25/01/2025

My corner of Seattle still has an AT&T long lines tower. It's a prominent local landmark but I suspect most folks have no idea why it's there. One of the horns is still in use, which is very rare. #seattle #longlines