This may be done with the following signal path:
Mic - step up input transformer - diode electron tube bridging to - step down output transformer - Mic out connected to input of preamplifier
So the diode joins the 2 transformers together on one side of their winding
The other sides are connected together.
It happened by chance while playing with 1T4 type electron tubes on Pleiades bias experiments and connecting them wrong. Only cathode and grid was connected but when heater voltage was applied the circuit worked are the boiling electrons joined the 2 transformers passing the signal.
So the cathode grid part of the tube was operating as an impedance joining the two transformers. It is also a diode of course. And it is also a biased diode as the missing emmited electrons from the cathode make the grid negative. See previous posts.
Would this approach add gentle overload characteristics?
No comments:
Post a Comment