Pultec MB1 build - poll added

Hi, I am working on making a Pultec MB1 clone and have started simulating the circuit in LTSpice. However, I am having some problems. This is my circuit: When I run the simulation from 1s to 1.01s, I get this output on the output transformer secondary, with the expected amount of gain. However, when I run the simulation longer term, recording data from 100s to 100.01s, I get a low output signal. The input signal is a 100mV sine wave. For... Read more