Snaider Sweep/HV Chassis
The sweep/HV chassis. Two 6BG6s provide the horizontal (line) deflection and the voltage for the high voltage doubler, which produces about 25 kv DC.
The HV (EHT) rectifiers are inside a plexiglass case. Two 1B3s work as voltage doublers, while the third 1B3 is the focus rectifier.