Diodes & Rectifiers

High performance, ultrafast diodes. Improve efficiency, reduce noise, allow higher frequency operation.

New-old-stock Soviet silicon diodes KD521V (КД521B) in a SOD27 package. These diodes were used in EHX/Sovtek Big Muff models from Civil War to Black Russian. The KD521V is a high-speed switching diode encapsulated in hermetically sealed, leaded glass. The SOD27 packages are similar to DO-35.

New-old-stock Soviet silicon diodes KD522B (КД522Б) in a SOD27 package. These diodes were used in EHX/Sovtek Big Muff models from Civil War to Black Russian. The KD522B is a high-speed switching diode encapsulated in hermetically sealed, leaded glass. The SOD27 packages are similar to DO-35.

NOS OA74A germanium diodes from Amperex. OA74A diodes were used in many vintage electronics and also make for great clipping diodes in stompbox effects pedals. The red end is the cathode. OA74A is a near-exact replacement for OA81.

2A bridge rectifier in an inline package ideal for PCB use. Features:

• Low reverse leakage
• Low forward voltage
• High forward surge current capability