Home Bottlehead Forum

Welcome! Need support, you got it. Or share you ideas and experiences.

foreplay power supply questions

63.74.199.15

Well, the first question is more to do with Duncan Amps Power Supply Designer:
http://www.duncanamps.com/psud2/
I am trying to model the foreplay power supply in this software, but to get the right b+ I need to just guess at the load resistor to use. How would I find the correct load resistor?

Also, do I need to correct the transformer secondary voltage based on my wall voltage being 120 rather than 110? If so, do they scale like:
(120/110) * secondary voltage
or something else, due to the windings difference between primary and secondary?

The reason I want to model the foreplay power supply is that I have some 40uf oil caps i'd like to try in the circuit instead, and I wanted to see what happens (without breaking stuff). It seems that the same b+ voltage is reached, just faster. What determines the size of caps in a power supply? If 40uf too low in the foreplay?

Thanks!


This post is made possible by the generous support of people like you and our sponsors:
  Kimber Kable  


Topic - foreplay power supply questions - m.w.h 14:57:50 01/28/03 (4)


You can not post to an archived thread.