What tubes does the Wards Airline GDR-8516A use?

The Wards Airline GDR-8516A uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Wards Airline GDR-8516A produced?

The Wards Airline GDR-8516A was produced 1963–1968.

Wards Airline GDR-8516A preset

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

The Wards Airline GDR-8516A was a budget American tube combo sold through Montgomery Ward stores, likely manufactured by Valco. These accessible instruments were the first electric guitar amplifiers for many American players in the 1960s.

Years produced: 1963–1968
Made in: USA
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

Tags: american, vintage, 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.