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The Knuckledragger 3rd Memorial Slow Forum Post
mikeymad replied to Knuckledragger's topic in Off Topic
Relevant to some in this forum... cool -
HP Justice joined the community
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Megatron Electrostatic Headphone Amplifier
JoaMat replied to kevin gilmore's topic in Do It Yourself
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.
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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.
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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.
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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.
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That's an expensive cat warmer.
- Yesterday
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Megatron Electrostatic Headphone Amplifier
JoaMat replied to kevin gilmore's topic in Do It Yourself
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...
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Vernon Reid ripping as always...
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ABC of AFX.
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masaikem joined the community
- Last week
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The Knuckledragger 3rd Memorial Slow Forum Post
Grahame replied to Knuckledragger's topic in Off Topic
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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?
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Strike Set Back Iran’s Nuclear Program by Only a Few Months, U.S. Report Says Classified findings indicate that the attack sealed off the entrances to two facilities but did not collapse their underground buildings. Karoline Leavitt, a White House spokeswoman: “The leaking of this alleged assessment is a clear attempt to demean President Trump, and discredit the brave fighter pilots who conducted a perfectly executed mission to obliterate Iran’s nuclear program,” she said in a statement. “Everyone knows what happens when you drop 14 30,000-pound bombs perfectly on their targets: total obliteration.” https://www.nytimes.com/2025/06/24/us/politics/iran-nuclear-sites.html?unlocked_article_code=1.RU8.H7dG.HU9ojgiGxKUK&smid=url-share (Gift article)
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Well, he is definitely an authority on people who don't know what the fuck they are doing.
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Started watching that last night (1-3) and it is good and kept our attention. I'm going to take a look at the other one (Survivors) mentioned as well. Thanks!
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I enjoyed that series ,Hope for season 2
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So presidential. Bonus round: Define article 5 ahead of the NATO summit.
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Gildorum joined the community
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hi spritzer thanks for your reply looks like yes, the only option is to simply either replace the transformers with others or just get a "direct drive" es amplifier today I bought an old KGSS for a very good price, I think this will be my solution for now
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You are measuring DC resistance of the transformers and not AC inductance but it is still rather low for my liking. So I'd say the transformers installed as clearly not suitable for this role so I'd replace them with something that actually works.