Why do you say that a swamped grid-driven tetrode needs neutralization? I haven't seen
this in published designs. Isn't a 50-200 ohm swamping resistor enough to stabilize the
amplifier?
Agreed on the other points!
On 10/28/2012 11:57 PM, Jim Thomson wrote:
## actually, they are not apples and oranges. One has an extra grid in it,
requires a regulated screen supply, neutralization, and some method to cancel
out
the Xc between the cathode and control grid, so u just cant slap a 50/200 ohm.
passive grid resistor in there.
--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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