The Gar2520 is an imitation of the mid 70’s API 2520 opamps designed by Gary Barnett and based on the Peter Lazaro’s reverse-engineering work.  According to CAPI, the Gar2520 sounds “hairsplittingly” close to the original, while using all modern and widely available components.

Images courtesy of CAPI

Notable Features:

• Industry standard 2520 footprint
• Can be powered by +/-12 to +/-20 rails
• All transistors are currently available

Price:

• $17.50 for full kit
• $2.85 for PCB only

Products and more information available at capi-gear.com.

A blog post about building the Gar2520 from Brian Gilbert.