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Good call on the Coronado's...there was one in a thrift shop I passed up that looked Japanese too. Also, "Broadmoor" (sp?) was a similar set.
The CRT is a strange number which I cannot recall offhand, but i'm 99% sure it's a delta-gun arrangement due to the convergence assembly.
This one had some trouble with the vertical linearity (at the top) but some adjustment and a 330Ω resistor near the b+ adjustment fixed that. The B line was about 12v down from the posted value inside the set ... works like a charm now!
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