From private collection: Pair/2 pieces of rare never ever used SIEMENS & Halske E188CC (6922, Cca) vintage twin triodes NOS/NIB as pic. shows, getter plates, gold pins. The "holy grail" of the 6DJ8/E88CC family. Both tubes wear the same batch code "G6/4A" engraved in the getter bar. I take shipping costs for registered mail - you take paypal fee.
