I worry that this circuit has been presented without the relevant warnings. There's no isolation here, so you're exposing people who may go and build this circuit to live mains.
Think about the pot, for example. If somebody built this, and stuck a normal potentiometer on the front of a box to adjust the voltage, they may not think to use a pot that has a high insulation rating between the handle and the wiper. You could get a nasty crack of line voltage DC through the pot handle via your squishy internals and down to ground.
The pictures are also a bit concerning - the big metal heatsinks are almost certainly live as transistor tabs are usually connected to one of the pins and you don't seem to have isolating washers and grommets. I wouldn't want to thread a screwdriver down between live heatsinks to get to the adjustment pot.
This sort of regulator is okay if it and everything it powers is sealed away so nobody can touch it, or if it's powered via an isolating transformer. It's an unusual configuration and it'd be unusual for people to know what must be done to be safe when building this circuit. That unusualness along with the nasty consequences of mistakes means you've got a moral obligation to take care to warn potential builders of some to these issues when presenting this circuit.
It's a completely un-annotated schematic. To build the prototype, someone has to select suitable electronics, put it together on perfboard, and last but not least strip a power-cable to have bare-ends to solder to the input of the bridge rectifier.
You really think that this person needs an additional warning about the dangers of 120V mains?
Think about the pot, for example. If somebody built this, and stuck a normal potentiometer on the front of a box to adjust the voltage, they may not think to use a pot that has a high insulation rating between the handle and the wiper. You could get a nasty crack of line voltage DC through the pot handle via your squishy internals and down to ground.
The pictures are also a bit concerning - the big metal heatsinks are almost certainly live as transistor tabs are usually connected to one of the pins and you don't seem to have isolating washers and grommets. I wouldn't want to thread a screwdriver down between live heatsinks to get to the adjustment pot.
This sort of regulator is okay if it and everything it powers is sealed away so nobody can touch it, or if it's powered via an isolating transformer. It's an unusual configuration and it'd be unusual for people to know what must be done to be safe when building this circuit. That unusualness along with the nasty consequences of mistakes means you've got a moral obligation to take care to warn potential builders of some to these issues when presenting this circuit.