What tubes does the Dynaco Dynakit Mark IV - Main use?

The Dynaco Dynakit Mark IV - Main uses 1× 12AX7 preamp tubes and 2× KT88 power tubes.

When was the Dynaco Dynakit Mark IV - Main produced?

The Dynaco Dynakit Mark IV - Main was produced 1961–1970.

Dynaco Dynakit Mark IV - Main preset

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

The Dynaco Dynakit Mark IV is a 40-watt monoblock power amplifier kit from Dynaco of Philadelphia, using KT88 output tubes for authoritative clean power in a hi-fi stereo system. Sold as a kit to keep costs low, the Mark IV was one of Dynaco's most successful products and helped popularize high-quality tube hi-fi among middle-class American households. Pairs of Mark IVs are still used today by audiophiles for their warm, powerful mono amplification.

Years produced: 1961–1970
Made in: USA
Wattage: 40W
Channels: 1
Preamp tubes: 1× 12AX7
Power tubes: 2× KT88

Tags: american, vintage.

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Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.