If you want a Commodore monitor replacement in mint condition and at a low cost, get a JVC TM-A13SU. They tend to pop up on ebay for under $50 brand new or practically new condition. Via Atari-Age:
My favorite replacement for the old school (1702-like) monitors is the JVC TM-A13SU. This monitor is a descendant of the TM-13U which is the monitor the 1702 is based on. Like the monitors of old, this one features a standard resolution P22 tube.
This isn’t strictly a consumer CRT, but it has the characteristics of one… down to the tube, TVL resolution, shadowmask and topping out with S-Video.
