Philips 4308 Tape Recorder 1968 Year

Track system: 4-track, single channel, monaural system
Heads: 1 x record/playback, 1 x erase
Reel size: up to 7 inch reel
Tape speeds: 1 7⁄8 3 3⁄4 ips
Wow and flutter: 0.25% (3 3⁄4 ips)
Frequency response: 60Hz to 14kHz (3 3⁄4 ips)
Signal to Noise Ratio: 45dB
Input: 150mV (line), 0.2mV (mic)
Output: 1V (line)
Speakers: 150 x 100mm oval
Dimensions: 420 x 150 x 300mm
Weight: 8kg
Year: 1968

[@robfriedrich2822]

I'm surprised, that they offered in 1968 a reel to reel tape in mono. I thought, that the cheap tape recorder was compact cassette and tape something, for HiFi enthusiasts.
In East Germany it was different, reel tape was way cheaper than cassette and it was a minority who could afford stereo equipment. So mono tape would be accepted, especially when radio would be too noisy in stereo.