bogen – Preservation Sound https://www.preservationsound.com information and ideas about audio history Mon, 05 Oct 2020 22:54:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 Bogen DB20 Equalizer Circuit circa 1953 https://www.preservationsound.com/bogen-db20-equalizer-circuit-circa-1953/ https://www.preservationsound.com/bogen-db20-equalizer-circuit-circa-1953/#comments Mon, 05 Oct 2020 22:53:59 +0000 http://www.preservationsound.com/?p=9472
From the October 1953 edition of RADIO ELECTRONICS comes this report on an exceptionally powerful EQ circuit as-found in the then-new Bogen DB20 amplifier. The circuit uses no special parts and promises extremely wide-range control. R11 is odd, i’m not sure why that is present. I’m thinking that this might make a good EQ circuit for the Berlinetta DJ console…
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