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For Sale Objective 2 Preamp

Things you have for sale.
One of my early projects: the Objective 2 (or O2) headphone amplifier, built as a preamp. 4 RCA inputs with rotary selector, one stereo RCA output. Includes 15 volt AC adapter (this is an important detail, don't use a 12v DC adapter!).

Sold

Asking $40 obo, local pickup in San Francisco preferred. Will ship ConUS at cost.
 

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