What happens to the polarised cap C11 doesn't it explode on negative half cycles?
There's nothing to limit the current through C11 and D7 especially at turn on, the inrush will be high.
When I simulated it C11 exploded.
Adding a series 10ohm with the C11 cap limited the inrush and stopped the cap from blowing up
When I simulated it C11 exploded.
Adding a series 10ohm with the C11 cap limited the inrush and stopped the cap from blowing up
Incorrect. The capacitors ESR and the Diode's internal resistance will. The capacitors originally used had significant ESR. Remember, this is a 1980's design.
In addition, this is powered from a mains transformer also loaded by a rectifier and large PSU capacitors, which will draw down initial voltage delivered from the winding.,
You did not simulate a sufficiently large number of variables in the system and were misled by a bad simulation.
It will not do harm but is not needed.
Thor
