I have neither the skill or equipment to do this,but I would really like to replace the scales on my 648 & 658. Especially the 658,which is really faded.The Jackson 648 was (and still is) a very popular machine. There may be a market for these
The scales on my Eico 667 and my RCA VTVM have no red left either. The RCA is the bigger problem, there is one voltage scale printed entirely in red that is basically invisible at this point.