Kerry

I think I used .125" for the face plate and .1" for the back. I just got some side profiles from FPE that I'm going to try out.

I used a #6 nylon hex screw. You need to make sure the bottom of the reg is isolated. I isolated the whole thing.

Just another rendering with the transistor and screw mounting in...

Just got the crimper UFN recommended. Works nice so far. Very snug

Here's one for Joachim It a low voltage version of the GR78xx Micro. It's only .45"(W) x .8"(H). It can run from 5V to 20V (with the right parts). I still need to do the negative. Here's what it looks like... I also re-did the layout of the larger version that can support up to 50V now. I can also do a supply that accepts these regulators, but pretty much any board designed for the LM78xx/LM79xx should support them.

Happy Birthday!

I started to and then I just pulled the trigger. Interested to see what you came up with. There seem to me some options to crimp both parts of the connector at the same time (bare wire / insulation).

I just bough one. Looks nice

Happy birthday Adam!

So here's something that should work as a 5V supply. I've run it in LTSpice and it shows < 3uV of noise at 5A output. Reality will push that up a bit with the reference being a big culprit. You've got to have at least 2.5V above your output to regulate, but 3V is safer (like Kevin said). I had to kill the current source feeding the reference, but that was driven more by the LT1021 (higher current requirements) and higher voltages and is not really necessary. I've run my GR78xx without the current source just fine. Also, you might be able to get away with one LED (for D9/D12) depending on the OpAmp min supply voltage. Hmmm... Less parts / smaller parts... could this fit on a smaller board

Oh what joy we inflict on ourselves

Sorry... with a few T2 builds underway, I've gone numb to prices

I needed a small package (ok, joke away) and tantalum usually is a good choice. Digikey has them reasonably priced for 10 or more.

Maybe use a LED instead in the Zener and use a low voltage op amp. I saw some that have supply voltages from 1.8v - 10v. I can run this through spice this evening.

Looks really nice. I think the IXTH6N100D2 is a to247 package. I also see you moved the diode and 10R resistor near the output. Any reason?

Happy birthday,

Happy belated birthday!

Happy Birthday Grahame!

Really nice work Birgir! Congrats on your 15 year anniversary. What a treasure of ideas and innovations you and Kevin have given us

That's amazing that you can mill that board. Nice work ?

Yes - For most applications I'd use just the center three pins. Yes - It took a bit of thinking to make the two sot23's fit.

I'm getting better with Eagle, so here's an updated version of the GR78xx boards (still need the GR79xx version). This version supports higher voltages and more current (some infamous designer wanted that ). The board is the same size at .8" x 1.16". GR78xx.xlsx GR78xx-Gerber.zip And some pics...

Interesting/funny/ I imported European style resistors/capacitors for the symbols on the schematic. The packages though are in inches (as imported).

Happy belated Birthday!

Happy belated Birthday