STC CV485 Heil tube
The CV485 is a specially selected CV228.
Vg2 is adjusted to give the specified cathode current. Operation with Va=Vres may give increased noise output. Jessops magnet type no. 10512 or 9501 is suitable.
The copper disk connects internally to pin 6
Above: V246A/2K / CV485; below: V246A/1K / CV485
This file was last modified
10:05:11, Thursday April 14, 2022