Product Description
Closely matched pair of new old stock Western Electric 417A high-mu triodes. (Equivalent to 5842) One tests 19500 uMhos (production code 852), the other 19000 uMhos (production code 652) with a baseline of 12500 uMhos. Common 6252 production code. In original boxes (1 torn flap). Tested on Hickok AN/USM-118B.