I have NOS genuine Analog Devices AD743KN (9) and AD745JN (11) for sale. The 743s will work well in ROTEL RQ-970BX phono preamp upgrade and the 745s are excellent for ADCOM GFP-565 preamplifier phono stage upgrade (along with required resistor and capacitor changes). These were sourced from an authorized USA distributor and have been long out of production. We have closed our audio service/upgrade shop due to retirement. $20 each plus shipping. PayPal with transaction fee added. Sells and ships to USA residents only.
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