The oscillator and pre-amp unit nearing completion. The small valve is the 12AU7 twin triode used as an oscillator and the other is the EL34 pentode used for the power amp.
The controls on the front are for frequency and output level, on the rear is the bias control for the main tube grid bias.
Not much in it really ! Power supply is at the bottom, in the middle is the oscillator and the amp is at the top.