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Electronics => Projects, Designs, and Technical Stuff => Topic started by: technix on November 19, 2015, 05:37:20 pm

Title: Does my chips look genuine? Round 2: NOS and second-hand precision references
Post by: technix on November 19, 2015, 05:37:20 pm

Chips involved:

• REF03 (Analog Devices), supposedly NOS. probably second hand? Checked and they seemed to work (but I don't have good enough a multimeter to check)
• LM399 (National Semiconductor), second hand.
• ADR02B (Analog Devices), second hand. Checked and they seemed to work (but I don't have good enough a multimeter to check)

p.s. I know I mounted one of my ADR02B the wrong way. Don't complain.

Title: Re: Does my chips look genuine? Round 2: NOS and second-hand precision references
Post by: Andreas on November 19, 2015, 06:53:27 pm

Hello,

At least the LM399 upper right looks very similar to the LM399 that I have.

With best regards

Andreas