20-11-2018, 08:47 PM
The line output valves, not being favoured by the audio fraternity were not all very linear in their G1 characteristics as they were designed for pulse operation and fast switching.
This has been overcome by some experimenters with circuits that drive G2 with the signal. G1 is simply used to set a fixed bias point.
G2 is lower impedance and needs to be driven at a higher voltage by (often) a cathode follower. You will see several designs on the web if you fancy trying something different.
Ed
This has been overcome by some experimenters with circuits that drive G2 with the signal. G1 is simply used to set a fixed bias point.
G2 is lower impedance and needs to be driven at a higher voltage by (often) a cathode follower. You will see several designs on the web if you fancy trying something different.
Ed







