a Tek 564 with his scope mobile 201-2, camera C12 - 3B3 - 3B4 - 3T2 sampling sweep - 2A61 - 3A6 - 3S2 with s1, s2, s3 complete set, s4
s4 is a <25ps head and may be one of the fastest.
goes now in restoration.
pictures to see at
http://www.wellenkino.de/forum/threa...d=1&thread=193
greetings
Martin