I am currently making a tube amplifier for a school project. I started out with a finished design, but have changed a lot and need some guidance as a result.
I am currently using a full wave rectifier bridge I made with 1N5404 diodes, and I will be rectifying 50Hz 230V AC into 325V DC. I have a 470uF capacitor I intend to use to smooth out the voltage, and I am wondering if it's even safe to put it directly after the bridge without resistors in series to limit the surge. The diodes should withstand a 200A surge, but I’m not sure how big the surge will get. Is the isolating transformer going to get saturated and limit the surge enough? I haven't bought one yet, but it will be a 30-50VA transformer. Also, would it be safe to test the circuit without an isolating transformer? I would like to test it out before I get it!