Transformer questions
Posted: Thu Feb 23, 2017 1:05 am
I would appreciate if someone can help me understand some things about transformers.
1. Different amp designs use different transformers. Usually this is based on the number of tubes used. More tubes more amps needed on heater windings. However, what is the difference in high voltage on the amp sound. Keeping the heater supply constant what would either increasing the high voltage or decreasing the high voltage do to the amps sound?
2. Different power supplies use different filtering. Capacitors and resistors. Voltages are take off various points. Some schematics list voltages. My understanding is that the voltages are based on the tube draw. Why are there different areas that the current is tapped from. Early in the chain it is the OT and finally the preamp tubes. How are the resistor and capacitors calculated?
3. What is the effect of different OT resistance on sound. Like going from a 6.6k to 4K to 3.6K?
I hope that was clear
Thanks in advance
1. Different amp designs use different transformers. Usually this is based on the number of tubes used. More tubes more amps needed on heater windings. However, what is the difference in high voltage on the amp sound. Keeping the heater supply constant what would either increasing the high voltage or decreasing the high voltage do to the amps sound?
2. Different power supplies use different filtering. Capacitors and resistors. Voltages are take off various points. Some schematics list voltages. My understanding is that the voltages are based on the tube draw. Why are there different areas that the current is tapped from. Early in the chain it is the OT and finally the preamp tubes. How are the resistor and capacitors calculated?
3. What is the effect of different OT resistance on sound. Like going from a 6.6k to 4K to 3.6K?
I hope that was clear
Thanks in advance