fallout
Well-known member
Forgive me for the stupid question but my math just isnt working out. I'm looking at figure 2 on the API 2520 spec sheet:
http://www.danalexanderaudio.com/ApiInfo/api2520_02T.jpg
I'm trying to figure out how they arrive at 49db gain for the line amp circuit and the formula on the page.
I figured out the transformer in it's 1:3 config is giving 9 db gain using 20log√(secondary/primary)
but my calculation for rs+rf/rs is giving me 101 instead of 40
I know this is a rudimentary question and i must be missing something simple.. HELP! Thanks!
-jay
http://www.danalexanderaudio.com/ApiInfo/api2520_02T.jpg
I'm trying to figure out how they arrive at 49db gain for the line amp circuit and the formula on the page.
I figured out the transformer in it's 1:3 config is giving 9 db gain using 20log√(secondary/primary)
but my calculation for rs+rf/rs is giving me 101 instead of 40
I know this is a rudimentary question and i must be missing something simple.. HELP! Thanks!
-jay