What tubes does the Bogen H30 use?

The Bogen H30 uses 3× 6SF5, 1× 6SL7 preamp tubes and 2× 6L6G power tubes.

When was the Bogen H30 produced?

The Bogen H30 was produced 1949.

Bogen H30 preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The H30 is a 1949 David Bogen tube public-address amplifier, not a guitar amp. Two microphone inputs each have a 6SF5 preamp and their own volume, and a third high-level input has its own volume; all mix into a third 6SF5 gain stage and a multi-position tone switch. A 6SL7 paraphase inverter drives a push-pull pair of cathode-biased 6L6Gs on a 5U4G rectifier with choke, with 70 V line and 4, 8 and 16 ohm taps.

Years produced: 1949
Made in: USA
Wattage: 30W
Channels: 1
Preamp tubes: 3× 6SF5, 1× 6SL7
Power tubes: 2× 6L6G

Tags: american, vintage, 6l6, mid-wattage, clean.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

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.