21-02-2016, 10:21 AM
Hi Lawrence.
I wonder if you could use a triode/pentode like an ECF80, use the pentode as a high impedance amp, then DC couple the Pentode Anode to the Triode grid. The only downside could be DC current but you could limit the current in the triode with a suitable anode load resistor with the anode de-coupled. In that way you may be able to have your matching TX directly connected to the cathode.
I find that many circuits will work and work well against all the theory, possibly a suck it and see scenario!
I wonder if you could use a triode/pentode like an ECF80, use the pentode as a high impedance amp, then DC couple the Pentode Anode to the Triode grid. The only downside could be DC current but you could limit the current in the triode with a suitable anode load resistor with the anode de-coupled. In that way you may be able to have your matching TX directly connected to the cathode.
I find that many circuits will work and work well against all the theory, possibly a suck it and see scenario!
