Guy's would like your input, I have some mp3210 metglas toroid core's, I want to make a pair of Mc stepup with...I need help with figuring out how much primary inductance is need for flat to 30 cycles and usable -3db down at 15? primary wire is .71mm round
Thank you
Lawrence
Thank you
Lawrence
"-3dB @ 15Hz" implies -1dB @ 30Hz.
A key thing we need is the pickup's resistive impedance.
0.1H (100mH) at 30Hz is 18 Ohms, just as a check-point for 5 to 50 Ohm sources.
And the A(L) of your cores (we may not have memorized the table). Looks like 148 nH/N^2. My abacus is saying 800 turns, which does not seem right....
A key thing we need is the pickup's resistive impedance.
0.1H (100mH) at 30Hz is 18 Ohms, just as a check-point for 5 to 50 Ohm sources.
And the A(L) of your cores (we may not have memorized the table). Looks like 148 nH/N^2. My abacus is saying 800 turns, which does not seem right....
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