Say whut? Without a schematic, I haven't a clue what you're talking about.Thanks for the input guys !
OK! Here’s what I’ve come up with breaking this down in a theoretical model .
Observing the B+ path (through the load coil to the plate and across the tube to a cathode ground) as a voltage dividing network (at fixed frequency) indicates that adding additional tubes raises the value of interelectrode output capacitance (plate to cathode) thus reducing reactance at the end of the network and increasing the voltage drop across set plate load coil.
Diverging from set frequency alters L reactance and C reactance each in opposite exponential directions changing the voltage ratio across the network.
Any thoughts ?
And thanks for the chat.
Yeah, it's the Face on Mars, before the "better" more recent pictures showed it to be just a hill, with no resemblance to a face. I think it's a conspiracy. :wink:On a lighter note: Doing some quick calculations in the Audio frequency bandwidth this model would prove efficient pending music taste involving a 1khz tone… (Hearing test classics). Or… perhaps this theoretical model is applicable to RF “at” a fixed frequency. Could get lonely for a ham while waiting for someone to find him using this model…
Ron, I reviewed a few cascode circuits ! Thanks for the suggestion.
…By the way Ron, is that a mars shot (avatar) or are you into photographing solder blobs that resemble human physiognomy ? Got any dinosaurs?
The purpose of the screen grid in a tetrode is to reduce the (Miller) capacitance between the plate and the control grid, allowing higher bandwidth operation. The cascode triode configuration has the same effect. You shouldn't need to use tetrodes in a cascode circuit.vince said:Hey Ron,
In reviewing cascode circuits the voltage drops make sense.
Thanks for recomendation. I have found only triode circuits.
Have you encountered any tetrode circuits( the screens are stackin up!)
if so any ideas on configuration?
I get the sense your holding back on my answers...Ron intices with a delicious nuggety inference and thoughtfully said: