Active Devices

A range of matched JFET offerings suitable for do-it-yourself audio projects. Learn more about the matching requirements or Idss choice for your pr...

  The Korg Nutube 6P1 is a new, miniature, low-power dual directly-heated triode device. It was developed by Korg (of musical instrument fame) and...

Included in this kit are the semiconductors needed to complete an F-6 amplifier, with the exception of the input JFETs, which can be sourced separa...

Included in this kit are the semiconductors needed to complete an F-4 amplifier or BA-3 output stage, with the exception of the input JFETs. MOSFE...

Included in this kit are the semiconductors needed to complete an F-5 amplifier,  with the exception of the input JFETs, which can be sourced separ...

The Burson V6 Vivid and Classic are discrete component drop-in replacements for many types of op amp: Dual AD823, AD823AN, AD8066, AD8620, AD712, ...

Included in this kit are the semiconductors needed to complete an F-5T V1 or V2 amplifier, with the exception of the input JFETs, which can be sour...

The Burson V5i is a hybrid discrete/integrated component drop-in replacement for many types of op amp: Dual AD823, AD823AN, AD8066, AD8620, AD712...