My first Silvertone

[old_coot88]

If you haven't already done so, be sure and check that 270K resistor going to the wiper of the height control. It's the plate load resistor of the V.osc. It tends to go 'waay high in value because of being constantly hammered by a high level pulse during operation. It's a very common failure across all brands and vintages of sets. Well worth bookmarking.