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a two-stage common-cathode amplifier based on a [[12AU7]] dual triode. | a two-stage common-cathode amplifier based on a [[12AU7]] dual triode. | ||
The oscillator tube is a [[6CZ5]] power pentode. | The oscillator tube is a [[6CZ5]] power pentode. | ||
The 555 uses the [[T5550]] CRT. | |||
==Pictures== | ==Pictures== |