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"Wow! Very impressed with my first experience with your company. I had purchased a Laserdisc from eBay of the legendary harpsichordist Scott Ross, then considered a few businesses that do conversion. Yours was the only one not to say 'sorry, pal, we don't do PAL' (in fact, I found your website saying you welcome both NTSC and PAL Laserdiscs). ..."

Bias trap

Low-pass filter in tape replay circuit designed to attenuate any high frequency bias present, thus preventing it from overloading the record or playback amplifiers in a tape recorder.