6H30 Class A Linestage | A Custom Tube Preamp

Circuit by Craig Ostby of NOSValves.com

 

PCNC 1100 Cutting Tube Plates   Billet Aluminum Tube Plates   Tube Plates Polished

First order of business was to CNC machine the tube mount plates from billet aluminum. These were then sanded smooth and polished.

Black Nickel Plating   6H30 Linestage CNC Lettering   6H30 Linestage Parts

The tube mounting plates were then plated in black nickel by a local shop.
Next was more CNC machining to add the chassis lettering and finally getting all the parts together to complete the build.

6H30 Linestage Layout   Custom RCA Connector Wrench   6H30 Linestage wiring

Next is the the chassis layout and affixing everything in place. A short detour to make a custom wrench to tighten the RCA jacks.
Back to working on wiring, routing, and soldering.

6H30 Linestage wiring   6H30 Linestage wiring   Completed 6H30 Linestage

A couple pictures of the wiring and a final picture of the completed linestage.

6H30 Linestage   6H30 / 2A3 SET System

A 6H30 class A linestage and 2A3 SET amplifier two channel system.