RCA TM-21 Monitor
Courtesy of John Folsom |
TLS50. Based around the CTC-2B chassis (21CT-55), with
no modifications to the basic chassis, except to leave off the
convergence yoke assembly. All the circuitry associated with the
fantastic control panel is passive components, used to adjust the
bias on the 3 CRTs, and set up the vertical and horizontal sweep and
focus. The projection optics are 3 Norelco Protelgram boxes, with
special versions of the 3NP4 CRTs, with blue, green and yellow
phosphors, and a red Wratten filter.
Courtesy of John Folsom |
