Museum of Obsolete Media
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Museum of Obsolete Media
@obsoletemediauk.mastodon.world.ap.brid.gy
A unique online museum of physical media formats showcasing developments in audio, video, film and data storage.

#RetroTech #ComputingHistory […]

🌉 bridged from https://mastodon.world/@obsoletemediauk on the fediverse by https://fed.brid.gy/
Following on from @avavsystems post about Pocket Rockers, here's some more about them.

They were advertised with the tagline ‘Tiny Tapes, Tiny Players’ and came in a range of colourful designs. They were a fashion item as much as a music system (the tapes […]

[Original post on mastodon.world]
November 16, 2025 at 4:02 PM
An obscure background music system from the UK, the Ditchburn Symphonaire was introduced in 1962 and utilised the 'C' size Fidelipac cartridge to provide up to four hours of music from the Ditchburn Music Library across two tracks.

Thanks to @avavsystems for donating this rare example.
October 28, 2025 at 5:26 PM
The MI-12877 was a cartridge containing thin magnetic wire for recording and playback of audio, and was introduced in 1947 for use in the RCA Magnetic Wire Recorder. Wire was already in use as a recording medium but it was fragile and needed to be threaded […]

[Original post on mastodon.world]
October 26, 2025 at 11:16 AM
The Extended Density (ED) 3.5-inch Microfloppy was an advance on the HD version, with improved oxide coatings that offered 2.88 MB of storage.

Introduced in 1991 on the NeXTcube, NeXTstation and IBM PS/2 model 57, it was too small an advance in capacity over […]

[Original post on mastodon.world]
October 21, 2025 at 3:10 PM
The SQ Quadraphonic version of Tubular Bells came a with sticker on the front cover that said 'For people with four ears'. The rear cover said 'Store in four dry places'.
October 19, 2025 at 9:40 AM
Kodak launched their popular range of instant film cameras in 1976, along with an instant integral film pack, the PR10. This was similar to Polaroid's SX-70 instant film and Polaroid launched a lawsuit against Kodak that Kodak evenually lost, and had to stop […]

[Original post on mastodon.world]
October 11, 2025 at 10:15 AM
The Friden Computyper computer of 1967 was marketed as a billing machine and made use of a cartridge with a continuous loop of punched Mylar tape to program it.

The tapes were prepared by a Friden office, to meet the needs of the company running the […]

[Original post on mastodon.world]
September 27, 2025 at 7:52 AM
Agfa introduced their Karat series of cameras in 1936 and with it introduced a new film cartridge system for 35 mm photographic film. Two cartridges were used, with the film being drawn from one cartridge and then being pushed into the empty cartridge. One […]

[Original post on mastodon.world]
September 16, 2025 at 2:11 PM
Reposted by Museum of Obsolete Media
discovered this ad for a Panasonic PV-SD4090 in a march 2000 issue of Wired mag

99% of the time i see sony mavica posts for retro digicams, but this one is a real treasure. those LS-120 drives did not really catch on at the time, and it’s a shame because iomega […]

[Original post on dialup.cafe]
September 11, 2025 at 5:13 PM
The Sharp Magnetic Bubble Memory cartridge was introduced in 1983 for use as removable storage in the Sharp PC-5000 portable computer, in place of a hard disk or internal floppy disks. It offered 128 KB of storage.

This cartridge was kindly donated by my […]

[Original post on mastodon.world]
September 6, 2025 at 9:12 AM
The Music Screeners series was a short-lived format that offered multimedia content on a 3.5-inch floppy disk. They were launched by Sony in late 1995 with 21 titles - more were planned for 1996 but this doesn't appear to have happened.

Each disk was themed […]

[Original post on mastodon.world]
September 2, 2025 at 2:06 PM
In the 1900s and 1910s there were a number of Chicago-based record labels that operated a type of premium scheme whereby the phonograph itself was inexpensive but the purchaser was locked-in to purchasing discs made for the player through the use of different […]

[Original post on mastodon.world]
August 30, 2025 at 4:43 PM
Some older automatic washing machines used metal punched cards to control their wash cycles and offer more choice over programmes. The cards were placed in a slot on the machine – a top row of smaller perforations was used to pull the card along and as the […]

[Original post on mastodon.world]
August 26, 2025 at 6:28 PM
This is a background music cartridge from Planned Equipment Ltd. (PEL). Using an 8-Track cartridge, it offered four 4 hours of mono music by running the tape at half the normal speed and using all eight tracks.

This particular cartridge was kindly donated by […]

[Original post on mastodon.world]
August 23, 2025 at 1:05 PM
Busy Bee Records was started in 1904 and was one of a number of Chicago-based labels that operated a type of premium scheme whereby the phonograph itself was inexpensive but the purchaser was locked-in to purchasing discs made for the player.

The Busy Bee […]

[Original post on mastodon.world]
August 19, 2025 at 9:44 AM
Introduced around the early 1930s, the Movie-Jeckor was a toy projector that used paper rolls and an electric lamp.

The reel contained two rows of images and as a handle on the projector was turned, the strip was advanced and a shutter inside the projector […]

[Original post on mastodon.world]
August 16, 2025 at 12:59 PM
UD-4 was a lesser known quadraphonic LP format introduced by Nippon Columbia (Denon) in 1974. It contained both matrix and discrete quadraphonic systems, but didn't do well commercially with just 30 releases. This is a sampler album from 1974. More information […]

[Original post on mastodon.world]
August 12, 2025 at 7:21 PM