Supposedly PCB5 OE 2018 - the parallel port version.
It seems to be one of the better ones, and I have tested the VPP power with a resistor as load to check for sag.
And it was within budget
I also splashed out on an M328 LCR, Diode, Capacitance, ESR & Transistor Tester kit.
I'm upgrading it to 0.1% resistors, as suggested on a few forums. It seems to work quite well.