Fully assembled and tested version of our DIY-990 op-amp.
Built to the specifications of Deane Jensen’s now famous JE-990 paper published in the February 1980 AES journal. The Hairball Audio version of the JE-990 utilizes a bottom layer mounted SSM2212 Analog Devices dual matched transistor. Op-Amps arrive fully test with a 48 burn-in. Tested for 12V-24V bipolar supplies.
PCB layout by MNATs in 2520 format.
The JE-990 PCB is made and assembled in the USA.
We got your back! We offer flat rate repair on all of our DIY builds if you get stuck.
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