Sony Super Betamax Model SL-HF550 Home Forums Galleries Beta Format Galleries Sony Betamax Gallery Vintage Video Galleries E-mail   Vintage Sony Super Betamax VTR Model SL-HF550   Sony Betamax SL-HF550 Information     Sony Super Betamax SL-HF550. From the year 1986. Sold for $900. Has 3 heads, perfect freeze-frame and slo-mo, improved fluorescent display with moving arrows showing tape motion, 7-day, 6-event programming, Unlike the SL-HF450 this one has split audio level controls for L and R channels. Step up model from the SL-HF450.   Pictures