TEKTRONIX 4XX CODING LAMP LED MSG.

This is a replacement for the original Probe Coding lamp holder. Replace the incandescent lamps with LED's. 05/01/2022 Added Ver. 5.0 with several minor dimensional changes. This item has a space for the LED current limiting resistor and channels for the LED leads. These can be used on 465/475 and other older 4xx series that use incandescent lamps for Probe Coding information.