I know these are super rare, but you never know so I thought I'd ask. After seeing Phil x do all those demos on youtube with his 213 or 250 tonemaster amp, I thought It would be cool to build one of those amps. The only info on the varistors in the vibrato circuit I could find was some part numbers, FR1039 and FS308 which were 1MA @ 68v and 1MA @ 110v silicon carbide varistors.
Does anyone have a few of these or know of a work-alike and where to get them? Thanks.