Jeff Keyzer
@mightyohm.bsky.social
Electrical Engineer. W6OHM. Maker of the MightyOhm Geiger Counter and other electronics kits. Co-author of Soldering is Easy! Ex-Valve (Steam Controller, Steam Machines, Steam Deck). No longer on Twitter.
Anyone looking for a moderator? ☢️
www.govdeals.com/en/asset/650...
www.govdeals.com/en/asset/650...
July 2, 2025 at 3:32 PM
Anyone looking for a moderator? ☢️
www.govdeals.com/en/asset/650...
www.govdeals.com/en/asset/650...
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.
April 4, 2025 at 5:39 PM
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.
I see a couple rolls of 2mm on Amazon but for delicate repair work this is still huge.
April 4, 2025 at 5:37 PM
I see a couple rolls of 2mm on Amazon but for delicate repair work this is still huge.
Stained glass folks. Why is solid core solder for stained glass absurdly large diameter? 3mm or 1/8" seems to be the standard.
April 4, 2025 at 5:35 PM
Stained glass folks. Why is solid core solder for stained glass absurdly large diameter? 3mm or 1/8" seems to be the standard.
RIP Chris Knight 😢 #realgenius #valkilmer
April 2, 2025 at 5:10 AM
RIP Chris Knight 😢 #realgenius #valkilmer
Check out this fondue set by Swiss Toolmaker PB Swiss. I feel like every major tool company has a couple items like this.
March 27, 2025 at 6:20 PM
Check out this fondue set by Swiss Toolmaker PB Swiss. I feel like every major tool company has a couple items like this.
King county also showing zero alerts. alerts.weather.gov/search?zone=...
March 26, 2025 at 4:23 PM
King county also showing zero alerts. alerts.weather.gov/search?zone=...
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.
March 25, 2025 at 10:51 PM
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.
Also can someone tell Illinois Capacitor that this table isn't a substitute for a series chart?
March 12, 2025 at 9:01 PM
Also can someone tell Illinois Capacitor that this table isn't a substitute for a series chart?
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?
March 12, 2025 at 8:07 AM
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?
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!
February 22, 2025 at 12:59 AM
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!
When did it become so difficult to sell used books on Amazon?
February 18, 2025 at 6:02 PM
When did it become so difficult to sell used books on Amazon?
Here's the bottle.
January 30, 2025 at 12:33 AM
Here's the bottle.
Alternative packaging actually mentions DuPont. This is also known as CFC-113.
January 30, 2025 at 12:28 AM
Alternative packaging actually mentions DuPont. This is also known as CFC-113.
Here's a map of licenses still using the iconic rectangular KS15676 horns. I suspect many of these have been repurposed in-situ because they are very large, heavy, and hard to move. portal.radyn.com/license-sear...
January 26, 2025 at 7:25 PM
Here's a map of licenses still using the iconic rectangular KS15676 horns. I suspect many of these have been repurposed in-situ because they are very large, heavy, and hard to move. portal.radyn.com/license-sear...
The cool thing about that website is that you can search by antenna make/model Here's a map of all of the p2p licenses using the round Gabriel horn antennas. The only ones left online are Queen Anne and a chain of presumably former long lines sites in South Dakota. portal.radyn.com/license-sear...
January 26, 2025 at 7:20 PM
The cool thing about that website is that you can search by antenna make/model Here's a map of all of the p2p licenses using the round Gabriel horn antennas. The only ones left online are Queen Anne and a chain of presumably former long lines sites in South Dakota. portal.radyn.com/license-sear...
Here's the license info for the path that goes from Queen Anne's long lines tower to Blyn: portal.radyn.com/license-sear... cc @tubetime.bsky.social
January 26, 2025 at 7:15 PM
Here's the license info for the path that goes from Queen Anne's long lines tower to Blyn: portal.radyn.com/license-sear... cc @tubetime.bsky.social
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.
January 25, 2025 at 7:29 AM
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.
Here's the tower during the day.
January 25, 2025 at 7:25 AM
Here's the tower during the day.
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
January 25, 2025 at 7:22 AM
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
Has anyone found a good replacement for the Ikea Jansjo task lights? They are no longer available and I have several of them that flicker randomly.
December 20, 2024 at 8:32 PM
Has anyone found a good replacement for the Ikea Jansjo task lights? They are no longer available and I have several of them that flicker randomly.
A plea from a DMM manufacturer.
December 11, 2024 at 2:23 AM
A plea from a DMM manufacturer.
