Hi all. The other week I gave the A channel of my scope a voltage spike it didn't like and soooo I gotta fix it :rolleyes: Among other things there is a source follower FET in the input stage right after the attenuator. It has written on it "304" then underneath that, "E 5M". It is definitely dead but I can't seem to work out who makes it to get replacement or a data sheet to choose a reasonable substitute. Can anyone help me here?
TIA , GP :-)