Recent content by Sturdag Lagernathy

"Col. Angus has always rubbed me the wrong way, I can't put my finger on it." "Yes, Col. Angus is an ACQUIRED taste."

That Q1 Buffer-thing has bothered me for a long time, Thanks for your thought process walkthrough. You could build a decent pedal from the parts you took out! I would've liked to see a JFET put somewhere in there too, You know, for MOJO!⚡

My vote is Bot..

Did you happen to notice the low-pass filter formed by C5 and R8? or maybe C7 and R12? The high-pass formed by R8 and C6? R12 and C8? There are a couple more as well..:geek:

Heat sinks! The one on the top is a hair clip, but I keep both of these clipped to my iron. We used to use these back in the Pepsi Generation, but I guess they aren't used much anymore. Great for limiting heat to a part. The races in those pots are connected to the contacts by a very...

Hello! The TO-220 package is what you want. Pinouts are pretty standard. The big, grey square on the left of the board is the LM317, top down view. If you look close, the 3 light blue dots on tracks 2, 2/ 2, 3/ and 2, 4 correspond to the pins on the chip.

I found an old build! Quick and dirty. I can't remember what this was built for, but shows a good example of the projects simplicity. . Check out that casting flaw in the cast aluminum!

I've done this exact thing more than I care to mention. Last time, though, Jlcpcb sent me an email notifying me of the error! I always go the cheapest route, with no "in-house inspection", so not sure why a tiny fill layer issue caught attention. In the past, they have completely ignored such...

This is a circuit that will give a regulated, variable voltage from around 8.5vdc to 1.5vdc, if using a 9 volt supply. It also "emulates" age by throwing in a bit of capacitance (220pf) and a tiny impedance(max 200 Ohms). I sell a "real " version of this on a PCB, with a pretty case, but this...

Seriously? What about that schematic is questionable to you?

The "Tempo" control is quite usable, and I think sensitive enough for a practice metronome. I'd have to look at the schematic again, but I believe changing the high and low tempo limits is fairly straightforward, just changing out the right resistor or cap. It would probably be worth...

"Speaker" is just a bit more powerful of a "click", to drive a speaker fairly loudly. A 10k resistor in series and a 1k resistor to ground lower the output current to the "Line Out" so it doesn't smash the front of whatever you're plugging into.

Ok, this is a board I made for a Gibson Maestro, You can replace the 3.3 v regulator for another voltage, but it only inverts the input voltage. If you want a Voltage double for 18 volts out from 9 volts in, you'll have to wait a bit longer and I'll do it. You could probably find what you need...

I have a board for a Gibson Maestro that uses a regulator and a 1044 to supply -3.3vdc. If you socket the regulator, it should be OK to put any voltage regulator you want. I'm away from my files atm, so gimme a bit...

This is another fun time with vero board! The metronome from "Electronics Projects for Musicians", of which you can find a PDF on Google, which I highly recommend doing. I built this into a 1590A enclosure for my daughter, to use with her piano. It has a Pretty good "click" that goes from around...