Besides a modest electric guitar collection, I also provide some services.
Already 20 years I'm a (valve-)amplifier hobbyist / repairer. I've my own little firm "ROCK !", but no longer in existence, wherein I'm trying to repair those old amplifiers. Most of them are from Juke-Boxes, and I can say: I've seen them all! There're amp's I've repaired for Belgium; The Netherlands, but lately they're surfacing in Germany; France; Switserland; Sweden and last but not least: USA!
Due to my interrest in guitar amplifiers I've kept a few old ones under wraps trying to put them back in working order. In my museum I've already 50 amplifiers! Most of them are waiting to be repaired and have a nice old day between all their beloved guitars.
A few special ones are: a Televic HiFi guitar amp, made in Belgium!; the Eko SC800 mentioned before; an Hägstrom 523007 (yes serialnumber 007) guitar amplifier, together with the Hägstrom Impala 535007 (yes,also serialnumber 007!!); the FBT Ranger Two (Italia's Orange clone), and a Dynacord DA20; a Schaller KV40, first issue (with EZ81 instead of a Selenium rectifier 1963).
For the moment I'm repairing a Dynacord DA12 (1958) amp, who's vibrato-electronics have been cut out. But I'll get this amp in original working order again!!!! ... and since it's already a year ago: now it's again in working order and often used!