Invisibilia !
TheVintageKnob °11
Here gathered are the most ephemeral hifi components possible : prototypes !
Most of the time junked after the next proto came to be or after a round of Audio Fairs,
the vast majority of prototypes and pre-production samples are everything but remembered and only can become visible again by scouting old magazines and trade publications.

CD & Magneto-Optical
Philips '81
Alpine AD-7000
Marantz '81
Pioneer #1516
Philips '82
Telefunken MD
Luxman X-1D
Sansui PX-II
?? ??
Otto '82
Sony "Goronta"
Dual '82
Otto '81
Sony PCM-AD
Sony DAD-1X
H/K 8000
Mitsubishi DP-101
Grundig CD 35
Sony '81
Victor XL-V1
Pioneer P-L1000
Revox '83
Marantz, 1982
Teac, 1977
Philips F6532
Philips CD 400
Marantz CD-83
Fisher MOD-9280
Teac DL-7000
P. C. M.
Aurex PCM-mkII
Luxman X-2A
Marantz PCM-1000
Diatone D-10
Sony X-12DTC
Sony X-22DTC
Sony PAU-1602
Sony PCM-1
Sony PCM-10
Sony PCM-1600
Optonica RT-X1
Technics '78
Alpine '82

Diatone '81

Sharp RX-3
Technics SVP-100
Otto PCA-10
Diatone D-102
Sanyo VCP-R1000
D.A.T.
Sony '82
Sony '86 (I)
Sony '86 (II)
Sony "DAT-77"
Optonica RT-X5
Technics '82
Diatone '86
Akai X7
Alpine '82
Teac '86
Kenwood L-Z7
Denon '86
Victor '86
Technics '86
???
Amplifiers, turntables, high-tech etc...
Sony ES II ('74)
Revox '77
Yamaha 101C
Optonica k7 ('77)
Luxman X-3K
Luigi Colani '78

Yamaha 101M

Hitachi LCD ('77)
Karajan & Morita ('81)
Wega LAB ZERO ('78)
Optonica ('78)

Luxman X-5P ('82)

Sanyo Solar ('82)
Sony TA-E89
Sony TA-N89
Uher RtR ('77)
Sony TA-E88 ('76)
Sanyo speech
Sony ED Beta ('87)
Sharp LP changer
Marantz Tt 1000 mk0
Yamaha '82
Denon DX ('82)
Telefunken '77
Sony CDP-777
Sony APM ('78)
Sony APM ('82)
ELCASET & Unisette
Sanyo EL / PCM
Fisher ELE 5600
Fisher ELE 5500
JVC LD-777SA
Teac 1976
Technics RS-7900 (I)
  Technics RS-7900 (II)
Sony EL-D9
Sony 1976
Nordisk
Perfectone
VHD / AHD
Victor AHD
Victor HD-7500
Yamaha AHD
Victor VHD

The images contained herein are scanned from original magazines such as Stereo Sound (JP), Audio Accessory (JP), Stereo Technic (JP), Sony DIGIC (JP), HifiStereophonie (DE), Stereoplay (DE), Science&Vie (FR) and a few japanese HAM magazines. There is a copyright which I do not carry (of course), hence the TVK tag so that at least this here source remains visible.

PLEASE DO NOT DISTRIBUTE OR COPY these images for posting elsewhere !
These images are here, online, and they are not going to vanish.