JE-990 Discrete Op-Amp

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.

JE-990 Datasheet (Coming Soon)

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