Here is the second KGST up and running. I don't recommend trying to build it this small...
This one was supposed to be silver but I ordered the wrong chassis though I think it looks kinda nice. The transformer is the BH unit I was having trouble with and here it doesn't complain at all. The amp is drawing about 65W which is a far cry from the 170W or so from the Blue Hawaii.
The real problem with something this small is the height. The tubes are simply too tall to use an 80mm chassis but I got away with it by hand selecting the shortest tubes in stock and using 6mm standoffs. This one also uses the KGSSHV mini PSU which is considerably smaller than the KGST unit.
Just noticed that there is a typo on the back panel. Bloddy "electostatic headphone amps"...