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Classic gear from yesteryear; vintage audio standing the test of time.

RE: The Mac 275

Hi Guys, I thought that point to point soldering was the primo way to go with the heat of vacuum tubes even though Dyna amps used circuit boards. I made a headphone amp kit,the (Corda) from Germany.I made some resistor mistakes after I sent it back to Germany it was returned fixed by Jan Meier, the inventor of the amp. He told me of circuit board (lift off) of the line of wire,even though I used a 25 watt or less soldering iron. One thing that I don't get is that Lamm amps and preamps have circuit boards and cost about 40 grand? Do they ever break down?...Mark Korda


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