All Activity

https://www.youtube.com/watch?v=VZwyVbJYoUU https://www.youtube.com/watch?v=330Tc2qR28Q CHARAN-PO-RANTAN - tiny desk concerts JAPAN (1 & 2 / 2)

Digikey recommended C3M0900170D as a replacement. Specs are mostly quite similar but Vgs(th) is slightly different, and the gate-source voltage curves look very different from C2M1000170D. I believe this graph tells us about the gain and linearity? I am not at all well versed in transistors so don't take my word at face value. I looked at Wolfspeed's C3M lineup for 1.2-1.7kV, and basically everything had huge input and output capacitance or gate-source curves that didn't look as linear as the C2M1000170D. But again, I don't completely understand what I'm looking at, and will happily be corrected to learn. C2M0900170D https://assets.wolfspeed.com/uploads/2025/02/Wolfspeed_C3M0900170D_data_sheet.pdf Wolfspeed C3M, 1200 & 1700V, TO-247 https://www.wolfspeed.com/products/power/sic-mosfets/?blockingVoltage=1200 V|1700 V&package=TO-247-3

Deck 🇹🇭 💚 🐔 🍛

🇹🇭 💚 🐔 🍛

It's a 1030 Plus, so not exactly vintage. It's actually hugely helpful to have both a gravel and road computer. And the Garmin radar system is actually really cool. I'll probably add a second taillight to the mix for the pure road bike.

Gotta be good stuff!

My priorities and listening queue are out of whack... Finally Arcadia by Alison Krauss and Union Station (2025) https://album.link/mx9hftt6ktmgp Example: Full of audio treats. {and yes this was triggered by the Rick interview that just dropped}

Relevant to some in this forum... cool

I used a Mini Hot Plate when soldering the buck converter and inductor. First a thin layer of solder and then up on the plate. 150 degrees Celsius for a minute before up to 250. Rest of components are hand soldered. Thanks for the bridge tip. I have some small Schottky bridge rectifiers (CDBHD240-G) I intend to try first.

Great to know that. You could further reduce the PCB size by using a compact bridge rectifier like the CSPB40K-HF. It has a much smaller footprint compared to standard rectifier packages and still handles decent current. Like the way how you fix and test the 2A3 tube. Recently, I purchased these soldering tweezers from JBC to perform SMD work. Nice and decent.

We had a drooly cat who used to sleep on the amps. Every now and again I had to take the perforated covers off and wipe of the dried drool. Long gone alas - she got to a decrepit 19 and we had to say goodbye. In her heyday she was the scourge of the rodent population, including a family of rats that had defeated every other way of killing them.

Sweet!!! When does the vintage ggarmin go up for sale? I was using my iphone then buddy gave me a Galaxy Fold 5. Didn't really consider the "ooops, I don't have a bike computer" thing until I was getting ready for a ride after I sold my iPhone.

In the sprit of getting dirty I decided to list the Tarmac for sale and jump on this deal: It's a 2022 Cervelo Aspero 5 and the top of the line model at that. MSRP $10,500, I paid about 40c on the $ for it and the owner admitted that he bought it and essentially never rode it - condition backs that up. It also came with a like new Garmin head unit and tail light/radar setup which is pretty sweet. When I recently learned that they completed a ~9mi section of rail trail that can become ~50% of my morning commute I decided it was time to dive into the deep end. The color is something like "purple sunset" (cheers to you, Dusty) and is straight up wild. We'll see how the new modified commute goes tomorrow.

That's an expensive cat warmer.

Thanks to @Shawn, who found the device used in Elekit filament supply module, I now have a working DHT switched mode filament regulator ”prototype” (in red circle). Board size 23mm x 15mm (0.9in x 0.6in) Soldering looks awful, but remember my eyes are 69 years old and my hands are not that steady.

I'm sure the B2 pilots would be tickled to know they were flying fighters...

Vernon Reid ripping as always...

ABC of AFX.

That explains why nothing happened, I must have taken a wrong turn in Albuquerque

At least Mark Rutte (NATO Secretary General) can turn the (insincere? , surely not) flattery up to 11. "‘Dear Donald.’ Trump posts fawning private text from NATO chief on social media" https://truthsocial.com/@realDonaldTrump/114738606142462442 https://apnews.com/article/trump-rutte-text-message-nato-signal-6263810ac3ca77a5bf7366499f51c772 Maybe Donald will like NATO now?