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

RE: Foil Project for IIIa's

You might want to practice a bit with the solder and flux on a scrap piece of aluminum before risking the ribbons.

The tuning dots control resonances. The stretched mylar resonates like a drum. By dividing the diaphragm up into tuned sections, the resonances can be spread over a broader frequency range to smooth and tailor the frequency response.

I think Satie's the go-to guy on amps, don't know if he's seen your post but he has an encyclopedic knowledge of what's out there that might fit your budget.

Funny that you mention modifying a turntable for 78's, I did that with a Philips 212 when I was a kid. I still remember those cool capacitance switches with the glowing lights . . .

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