10-29-2020, 05:54 PM
Well....in the older times you would find datasheets.
Today...well, I would find out what radio the speaker from and then do that same calculation, using the dropout across the coil and its resistance which often enough is either shown or known if asked on the forums.
If the speaker works at lower currents but is big and powerful enough, a shunting divider would do taking part of the current while providing the needed biases for the tubes. Higher currents....nothing much could be done; you could use them but you will loose the efficiency of that speaker.
Today...well, I would find out what radio the speaker from and then do that same calculation, using the dropout across the coil and its resistance which often enough is either shown or known if asked on the forums.
If the speaker works at lower currents but is big and powerful enough, a shunting divider would do taking part of the current while providing the needed biases for the tubes. Higher currents....nothing much could be done; you could use them but you will loose the efficiency of that speaker.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
