What tubes does the Altec Lansing 1570A - Main use?

The Altec Lansing 1570A - Main uses 2× 12AX7 preamp tubes and 4× 6550 power tubes.

When was the Altec Lansing 1570A - Main produced?

The Altec Lansing 1570A - Main was produced 1960–1972.

Altec Lansing 1570A - Main preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Altec Lansing 1570A is a 100-watt professional tube amplifier built for cinema and broadcast installation applications. Altec Lansing was a dominant force in professional audio through the 1950s and 1960s, supplying major studios and cinemas with their amplification equipment. The 1570A is respected among audiophiles for its clean, powerful output and studio-grade reliability.

Years produced: 1960–1972
Made in: USA
Wattage: 100W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 4× 6550

Tags: american, vintage.

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