I've been fascinated with the Gibson GA1-RVT circuit for many years and finally decided to build one, incorporating some updates and improvements. Although the amp has only three miniature amplification tubes (and a 5Y3 rectifier), it offers single-ended output as well as grid-bias-modulating tremolo and a tube & transformer-driven spring reverb.

In this Part 1 (of 4) Video, we will discuss both the circuit and compound tubes it utilizes, then create a parts list, fabricate a chassis from 16-gauge hot-rolled steel, then machine the chassis and prepare it for painting and final wiring and assembly. Additional topics will include making a 2 Meg AT pot and color-changing LED pilot lights.

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Here is the link to the Parts List: https://app.box.com/s/7n4v1lzqyev5vo0...

Here is the code for a 10% Discount on Lacquered Tweed Deluxe 5E3 Cabinet from Mojotone: UD5E3 Should be good for several months.