I'm sitting on a heap of germanium transistors. From the time that computers made of discrete germanium transistors were decommissioned. Also 10...

I'm sitting on a heap of germanium transistors. From the time that computers made of discrete germanium transistors were decommissioned. Also 10 mm and 6 mm ferrite core. Can I make on oscillator, that runs on 1V , preferably using coils ? (Also trying to use LTSpice for the first time.) I can measure inductance of coils thanks to the miracle component testers from China. Groetjes Albert ...

I know it was working when I put it in the storage box years ago. But I don't remember what IP address it was set to at that time. The 18VDC...

I know it was working when I put it in the storage box years ago. But I don't remember what IP address it was set to at that time. The 18VDC 1Amp POE is known to be good & the RB411 lights & beeps when it's powered (although I'm not sure what's supposed to light up). I went to the firmware download page (which shows it's discontinued) and read every document there and tried all their rese...

"I am playing a fair even money game flipping coins. My opponent cannot quit. I intend to quit any time I get one bet ahead. Do I have an...

"I am playing a fair even money game flipping coins. My opponent cannot quit. I intend to quit any time I get one bet ahead. Do I have an advantage?" Bard: Yes, you do have an advantage in this scenario. Here's why: Limited downside: Since you are guaranteed to quit after winning one bet, your maximum possible loss is limited to losing your initial bet. Unlimited upside: Your potential ...

[From the "I know just enough to be dangerous" department :)] Thanks to Don, I've got an upgrade in the works for my project to make the...

[From the "I know just enough to be dangerous" department :)] Thanks to Don, I've got an upgrade in the works for my project to make the "daughtercard" a little smarter / easier. First pass here, I'm trying to see if I can get away with the ATTiny10 on the board, because that SOT-23-6 package is nice and tiny. However, this means I technically only have three easily-available I/O pins (...

Kind of a fun idea I had (actually a few months ago) to create a bit of an augmented experience when playing Dungeons and Dragons (or, well, I...

Kind of a fun idea I had (actually a few months ago) to create a bit of an augmented experience when playing Dungeons and Dragons (or, well, I suppose any tabletop / Pen & Paper RPG that happens to use a 1" grid, but I play D&D, so ... this is where I'm focused ;) ). Came across 3d-printable projects for making various tile-sets (think dungeons / caverns / taverns / etc. ) and after printin...

I have an old HVAC blower motor which was removed from a Carrier air handler on grounds it was defective. It's half horsepower, with ECM 3.0...

I have an old HVAC blower motor which was removed from a Carrier air handler on grounds it was defective. It's half horsepower, with ECM 3.0 controls. It has an AC input for motor power and a four pin control connector marked common, Rx, Tx and V+. Physically it's in perfect shape. On the bench it seems to work fine. The test procedure applies 24 VAC between common and Rx, the motor sof...

A number of us here, I'm sure, have used Sphere's web site (located in Kamloops BC) for either finding odd test gear or parts to fix same. Or...

A number of us here, I'm sure, have used Sphere's web site (located in Kamloops BC) for either finding odd test gear or parts to fix same. Or nixie tubes and other odds and ends... https://www.sphere.bc.ca/ Unfortunately the owner (Walter Shawlee II) has to shut the site down and liquidate all inventory due to illness - a sad day indeed! So if you have a big truck, I suggest driving...

Got it installed with wine here on my PC. Fonts are a bit wonky, but that happens from time to time, so not going to really bother with...

Got it installed with wine here on my PC. Fonts are a bit wonky, but that happens from time to time, so not going to really bother with it. Took things for a spin by trying to build your basic low-pass filter as one might see on a momentary-contact button (etc.). Thing is, I wasn't seeing any "switch" or "button" type symbols -- am I just blind, and missed them somewhere in the myriad ...

I bought a $230 wifi radio that is impressive in many ways, but the problem I have is that the sound sounds muffled Maybe it's okay for music....

I bought a $230 wifi radio that is impressive in many ways, but the problem I have is that the sound sounds muffled Maybe it's okay for music. I haven't listened to much music, but for talk it sounds muffled. Like literally they are talking through some sort of muffle. I don't have this problem with 5 other table radios. Is the problem that there is too much bass? If not that, what?...

I recall working on an arc lamp power supply, which used a spark gap for ignition. I wondered, and still do, are there any design techniques...

I recall working on an arc lamp power supply, which used a spark gap for ignition. I wondered, and still do, are there any design techniques or formulas, to obtain a specific desired voltage pulse across the gap? Or is it cut and try, regarding the gap size and current? (the current break, that is) -- Rich