Story

I've been doing this a long time, since 1982 to be exact. Designing analog circuits has been my passion these past 43 years. As a classically trained engineer, I really dug into discrete transistor circuits, especially non-linear applications (multipliers, current mirrors), buying and reading every book I could get my hands on. This later morphed into vacuum tubes, where I continued to devour information, studying mountains of schematics and data sheets. Working at several companies along the way, I gained experience in a number of relevant areas, not just analog, but also RF, power, communications, instrumentation, and software. Most pedal designers are self-taught, knowing nothing beyond copying and modifying existing guitar circuits. Ask them to create something out of their comfort zone (say a television or pacemaker) and they go blank. I'm different. My broad knowledge of circuits and tricks allows me to bring innovation and novelty to the scene.

My tube pedals are designed using high quality components including polypropylene capacitors, metal film resistors, and high temperature electrolytics. An internal boost converter generates the high voltage required for proper tube operation, allowing for incredible gain and headroom.  

Each pedal is hand-built in the USA. Carefully designed circuit boards and enclosures are optimized for minimal wiring, insuring consistency and low noise, suitable for recording purposes.  Controls are fine tuned such that each knob has an intuitive feel providing a useful range, but without trying to go too far.  Dialing in a variety of tones becomes intuitive and straightforward, with no explanation necessary.

I do not copy or clone other people's work. Ideas may get borrowed, but they are changed in some unusual or novel way, creating something new. I strive to bring innovation and originality to the pedal market through clever and unique design.

I grew up playing trumpet, got pretty good too. The experience playing in jazz bands (and a symphony) really struck a chord, and today still guides me in everything I do. Here I am in my old lab (circa 2005) still trying to make it happen...

Innovation

• Micro-power pentode push/pull output stage, the POWER BABY.
• Non-saturating differential transistor clipper, found in GAMMA RADIATION.
• All-tube symmetrical clipping stage, found in PP12, THERMIONIC REINFORCER and  OVERDRIVE CLIPPER.
• Autobias fuzz, an analog output bias stabilization circuit added to a classic Fuzz Face type pedal, found in TSAR FACE.
• Low power reactive load for tube amplifiers, the REACTOR.
• Tube-based KLON pedal, the TUBEKLØN.
  
• High voltage B9A tube pedal operating at less than 200mA, the EF86 BOOSTER.
• Vacuum tube curve tracer that displays two triodes (or pentodes) at once, the VACUTRACE.
• USB to SPDIF converter with isolated grounding, the HAGUSB.
• Combined strobe light and pattern in a single unit, the UFO.
• Power cord burn-in generator that drives the same cord that is also feeding it power, the FRYCORDER.
• LM555 circuit modification to deliver less than 50% duty cycle.
• Solution to reduce motor hum in Rega tables with Grado cartridges, the HUMBUCKER.
• Wide-bandwidth non-linear GAMMA CORRECTION circuit for video displays.
• Two-transistor LEVEL TRANSLATOR for I2C circuits.
• Accurate analog BATTERY FUEL GAUGE.
• Simplified set of absorptive RF FILTERS.