4 for $12.99) 1S4 NOS
30 in stock most are GE
and
4) JRC-1S4=VT-210 RCA 1942 1) JRK-1S4 Ken Rad NOS 1945
 1S4 US Brands NOS (4 for $12.99) "Pin It")
 1S4 US Brands NOS (4 for $12.99)&Category=&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1299_4_ab90f95f-8334-4708-9c3c-b52aff2062ba.jpg?v=1574611898){kind=link}