The Secret Society of Lathe Trolls

Thanks. This seems odd to me. The RIAA EQ curve was created to allow the groove to be better cut into records but the implementation of this EQ is call inverse RIAA EQ The playback circuit that is used by phono preamps to reverse the EQ that was applied during the making of records is called RIAA EQ...

I have read that article before and am just as confused as every other time that I have read it. My understanding is that an "inverse" RIAA EQ circuit is the same circuit (which reverses the RIAA EQ applied during record making) that is built into every modern phono preamp. When I put an LP (which h...

Correction I would be inputting a 20mv signal not 2mv.

That is a very cool site but I didn't see anything for a circuit that adds RIAA EQ to a flat EQ signal. It is easy to find circuits for reversing RIAA EQ because every audio phono stage preamp has that circuit built into it to make playing 33 1/3 RPM records possible. Because people who make records...

I can find many simple IRIAA RC circuits for reversing the RIAA EQ present on vinyl records but none for adding RIAA EQ to an audio tape. Every phono preamp has an IRIAA circuit but I cannot find a schematic for a simple RC circuit that adds RIAA EQ. Is there such a circuit or is it just not possibl...