Philips cassette diagram for the system introduced in 1965 that used 1/8-in. tape with 4-tracks running at 1-7/8 ips, allowing 30 or 45 minutes of stereo music per side. Philips cassette was 1/4 the size of the Fidelipac or Lear cartridge, making possible small battery-powered versatile players that could be carried anywhere. Mercury was one of the first record companies to offer a selection of 26 albums on the Philips cassette at a price of $5.95 each.
Philips ad of 1965, from Audio, June 1965
Philips ad of 1965, from Audio, June 1965
Norelco Carry-Corder 150, the "revolutionary tape recorder features reusable snap-in cartridges, one button control to start, stop, wind/rewind tape. Separate volume controls for record and playback. Weighs only 3 lbs with 5 flashlight batteries. 1-7/8 ips constant speed capstan drive. Has dynamic microphone with detachable remote switch. Superior sound quality with frequency response of 100 to 7000 cps."
