Sony Betamax Model SL-90 Home Forums Galleries Beta Format Galleries Sony Betamax Gallery Vintage Video Galleries E-mail   Vintage Sony Betamax VTR Model SL-90   Sony Betamax SL-90 Information     Sony Betamax SL-90. From the year 1984. Sold for $750. Features, 4 heads, perfect freeze-frame, 21-day, 9-event programming, full function, time, counter, channel display. Continuation of the E-Z Betamax. Looks very similar to the SL-2710.   Pictures