The Four Output Valves That Shaped Rock
We have a new video out on our Youtube channel. We are focusing on four key output valves : the EL84, 6V6, 6L6 and the EL34. Its a five minute video
ROS-2000 Board Design Overview
The ROS -2000 board is our upgraded, UK-made PCB for the valve board in Marshall JCM2000 DSL 50, DSL 100, and TSL 100/122 amps. We ship these worldwide, and the board comes with full instructions. A picture is worth a thousand words, so here is a 14-minute video explaining the key features of our design. Rowan Diskin, board designer of Keld Ampworks walks through the details and the reasons for how the design was implemented. Check
The Truth About Valves
A few weeks ago, I had a chat about the valve market with Cliff Brown of 633 Engineering. Some really cool amps from this leading UK bespoke amp manufacturer. 633’s amps are the culmination of Cliff’s rich experience, having designed mixing desks and valve amps for household-name manufacturers. We chatted about the valve market under the banner “The truth About Valves” and Cliff recorded the discussion. Lots of inside knowledge about valves (vacuum tubes for