Modulator/Transmitter Better Data

[N4LTA]

I have a 3000 volt ct plate transformer and a  couple of chokes for the power supply and a big 60H heising choke coming from a friend on this forum.

I plan to run two 813s at 1500 volts. Not sure my modulation transformer is big enough but we will see.

I little voice in my head is telling me to get a larger heising choke for this rig and replace the power transformer with a Hammond 282X to raise the plate voltage 100 volts. It is normal to hear voices when you start playing with AM?


Pat

[IN3IEX]

I simulated part of Jim limiter (with the previous idea of single idle voltage supply and voltage dividers) with PSPICE, and it is possible to shape the clipped part of the waveform very easily.
D4 and R6 represent the tube.
There is some "mess" near the sine generator that is required to simulate an increasing modulation depth.
Anyway DC HV supply is 600V and tube internal resistance is 3kOhm.

Hope to inspire some new ideas...

[IN3IEX]

> It is normal to hear voices when you start playing with AM?

This is usual RFI ....

SSB makes NOISE
AM makes VOICES.....

[W2VW]

The voice is saying get a larger modulation transformer to take advantage of that plate transformer................