~FYI~~Public Service Announcement~~FYI~
Since the USPS has become extremely unreliable, DHL or UPS will be used for all International Priority and Express packages and some First Class packages. All domestic packages will be shipped via UPS.
Click to enlarge
The garOA10 DOA Full Kit Bundle is a full and complete parts kit with everything required to complete the garOA10 Discrete Operational Amplifier build. This board has been created by Gary Barnett of Barnett Industries. This DOA is a twelve transistor amplifier modeled after the legendary Neumann OA10. Gary has reformatted the layout to match the 2520 footprint. The original OA10 layout was a completely different proprietary footprint. The original OA10 was actually designed to run on +/-22 V rails but it should be noted that the garOA10 has been rigorously tested on +/-28 V rails with great success. So as a bonus, the garOA10 can be used in the GDIY 51x format which utilizes +/-24 V rails. These started out as an experiment at Gary's shop, hence the original garXXXX moniker. How do they sound? They are ironically closer to Scott's Platinum Super Dot than anything else we've heard. This was my reply to Gary when he asked what we thought. "The low end warmth is what got us about it too. So thick and hefty without being pillowy or flabby. I think it will rule for kick and bass. We also like the smooth top end!" Some of the applications the garOA10 DOA can be used for: Microphone Preamplifiers Line or Booster Amplifiers Lossless Combining Amplifiers Balanced Transformerless Amplifiers Equalizers and Compressors Additional features and specs: Industry standard 2520 footprint for plug-in or PC mount connections Low noise, high power output Low distortion Minimum load impedance is 75 ohms for full output voltage Power supply voltage is bi-polar +/- 12 VDC to +/- 28 VDC It should be noted that all 12 transistors are currently in production and easily obtainable ***Please note: This assembly is not for the beginner. Good assembly and solder skills are a must!
Cost of separate items: US$17.85