gooba42 , vor einem Monat

@foone Plug that sucker into a variable power supply and turn the knobs until it either works or explodes!

foone OP , vor einem Monat

gonna assume that just means I can throw whatever I want at it.

97v 19amp, here I come!

foone OP , vor einem Monat

I shouldn't have to disassemble your device and find the voltage regulator and read the datasheets to know how many volts to give you!

foone OP , vor einem Monat

It's an L7805: so the max voltage is 35v, recommended voltage is about 10v?

philpem , vor einem Monat

@foone 9 to 12 depending on heatsinking, aye. Works down to seven and a half.

ChuckMcManis , vor einem Monat

@foone L7805 or LM7805? As a linear regulator the amount of heat it will dissipate will (input_voltage - 5) * current. So if you give it 10V and draw one amp from it the case will be dissipating 5W of heat. (quite toasty and will melt a TO-220 without heatsink) Typical safe dissipation in still air is about 2W so 7A in and 1A draw before you need to add copper.

james , vor einem Monat

@foone I shouldn't have to disassemble your device and repair your poor soldering to make it work out the box, either.

I remember when Amazon sold products, and wasn't just a front for the same Chinese sellers who infest eBay and Aliexpress.

rotopenguin , vor einem Monat

@foone curl a penny to the barrel diameter, shove it in and clamp your ground electrode to it. Poke the thoriated tungsten probe in center. Turn off the gas, you won't be needing it.

Boom, instant TIG PSU.

anotherwalther , vor einem Monat

@foone https://cohost.org/tercel-enby/post/3926360-empty

rotopenguin , vor einem Monat

@foone turning the knob on my bench supply, looking at the audience like a contestant on The Price Is Right

bytex64 , vor einem Monat

@foone Surely you will not regret 97v 19amp.