The Lisa series - the second generation.
Lisa, my only one, has serious problems. Not only is its tube fried,
it has a sad power supply.
note, the Lisa only runs at 5 MHz, when the Processor can run at 8
MHz. This is because when it was being developed, they had a
transistorised version of the 68000 which ran at 5. When it was
released (MC68000), it came out at 8 MHz. Oops!