I forgot to answer the capacitance question. For the free air test it was connected to the fixture at one edge of the wooden bench top. The other end to the edge of an adjacent bench. Three foot clearance all around.
Dave
My pleasure. The question has long attracted me for a non-audio application but it is interesting to ponder in the context of speaker cables. Need to figure out how to characterize a few to see if cable Ls changes significantly with current. If it changes much using sine wave excitation into an LCR instrument di/dt step induced field changes could be well worth exploring as JN alluded to some time back.
Dave
Look around the shop for a grinder with aluminium oxide (white) wheel ( for steel bits of course )
Why it has to be epoxy potted if you plan to operate the CVR under some power ?
Can’t be made to be immersed in oil? (A cylindrical can. In, Out at the bottom and top surface of the cylinder, the can filled with oil).
Dave
Thank you in advance 😉
George
That preamp didn't use any output transformers. Direct coupled output with a servo. And this in 1977.
Has anyone in the pass thousand years or so developed an electrical model of a speaker which includes the nonlinear back emf generator? Not a mathematical model... an electrical model so we can use it as a load on amplifiers.... for SIM use???
THx-RNMarsh
THx-RNMarsh
I'll stick with my own consul for phono design. '-) Sorry, thank you everybody.
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