What tubes does the Estey Electronics 425 use?

The Estey Electronics 425 uses 1× 6EU7, 1× 12DW7 preamp tubes and 2× 6L6GC power tubes.

When was the Estey Electronics 425 produced?

The Estey Electronics 425 was produced 1961.

Estey Electronics 425 preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Model 425 is a 1961 tube bass amplifier from Estey Electronics of Torrance, California, sold as part of the Magnatone line and dropped by 1962. High and low gain inputs feed a 6EU7 with volume and tone controls, and a 12DW7 provides a gain stage and a split-load phase inverter. Two fixed-bias 6L6GCs with negative feedback drive four 8-ohm speakers, fed by a 5AR4/GZ34 rectifier with a standby switch.

Years produced: 1961
Made in: USA
Wattage: 55W
Channels: 1
Preamp tubes: 1× 6EU7, 1× 12DW7
Power tubes: 2× 6L6GC

Tags: american, vintage, bass, 6l6.

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