On Tue, Jul 2, 2024 at 02:32 AM, Greg Walsh wrote:
It is the output voltages from the ExOR gates and the AND gates that concerns me as the lower the voltage output, the lower the RF output from the BS170's.?
Greg,
it looks like an increasing load to IC503 produced by the PA. The higher load may affect also the load to IC501 and IC502.
Could you show the waveforms at G and D of each group of BS170 (with DC, not only AC) at let's say 1.8 MHz and 28 MHz?
73, Ludwig
