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This circuit is an attempt to make a high-speed discrete non-LC tank VCO in the range of ~14 MHz so that it can work within the 20 meter HAM radio band. I am hoping this design transfers well to SPICE and then reality. Making a VCO like this with ICs seemed like it was going to cost a bit much, since the opamps that operate at the required bandwidth and slew rate seem to be a bit pricey. With this discrete design, I can make the sacrifice of using more power by making my resistors very small in exchange for higher switching speeds and bandwidths. This is part of an experiment of mine to make a 20 meter ham transceiver. If this works IRL, I will filter the triangle output heavily to approximate a sine wave and apply amplitude modulation to it.
