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AD558JD Analog Devices IC 8 Bit Dac Ceramic Gold DIP. 8304 date code. My tube tester is a SECO 107A Dynamic Mutual Conductance Tester. Good is at 60, but all tubes listed as NOS or NIB will have tested over 100, have no shorts, leaks or gas. (AD558JD analog devices ic 8 bit dac ceramic gold dip is the responsibility of Kara Miller) |
k.miller@cedar--rapids.com (Kara Miller) for more information.
