the ultimate & uber non portable 16 channel valve amplifier. after a fair while drilling every holey hole – it took only a day to final construct these 2 basic chassis skeletons. milled & cut & folded 2mm aluminium custom rack mount trays-  32 valve sockets – 16 tag strips – eight threesomes of hi voltage caps –  saddles of input & output connectors – 16 of  MB1  16k/600 output mofo trafos – and  obtusely massive  power connectorators .  this build is well underway now . it was a good day.