TDK

Explore TDK vintage audio equipment in the Vintage Technology Archive.

Audio Cassettes

• LB-3600 — TDK LB-3600 — TDK Audua metal quarter-inch reel tape on 10½-inch spool, sold in UK trade channel at £11.40 per reel in late-1970s dealer listings.
• MA-R-90 — TDK MA-R-90 metal cassette — Metal Alloy-Reference premium tape, priced near $6.50 in 1984 mail-order ads. History, pricing, and collector notes.
• MA-X-10 — TDK MA-X-10 metal cassette, sold as a 10-pack with a stated 100min length — a Type IV tape whose model number and running time never quite reconcile.

Cassette Deck

• AD-90 — TDK AD-90 Type I cassette — the budget workhorse of the early-1980s TDK line, sold at $1.85–$1.89 in period mail-order tables.
• ADX-90 — TDK ADX-90 cassette: a little-documented mid-premium TDK ferric sold in the early 1980s, priced between SA and SAX in period mail-order ads.
• C-180 — TDK C-180 — the world's longest-playing compact cassette at 180 minutes. Three hours of music per tape, with the thin-stock trade-offs that came with it.

Cassette Decks

• ADC-60 — Little-documented TDK ADC-60; no specs, dates, or product type confirmed. Period ads show other TDK cassettes (D-C60, MAR-C90) but not this model.
• C-90 — TDK C-90: little-documented; known mainly through 1980-81 ads listing SA C-90 and AD C-90 cassette prices. Find production years here.
• DC-90 — TDK DC-90: an obscure blank audio cassette documented mainly in a June 1980 Audio mail-order ad at $14.90 per ten-pack.
• L-500 (1979–1986+) — TDK L-500 Super Avilyn Betamax videocassette: 120-minute Beta tape launched in 1979 at $19.95, still in TDK's catalog in 1986.
• LX-35 — TDK LX-35 is a little-documented TDK audio cassette, seen in a 1981 mail-order ad as the LX35-90 at $5.39. Covers when it was made.
• SA-76 — TDK SA-76: little-documented TDK audio model. No format, date, or specs verified; period tape-buying guides do not list it.
• SAC-90 (1980–1981) — TDK SAC-90 — a 90-minute Type II high-bias cassette sold 1980–81, documented only through dealer ads at $2.99 to $29 per ten.
• T-120 (c. 1980–1989) — TDK T-120 blank VHS tape, in TDK's lineup by 1980 and sold through the decade; the ES grade carried IIDD binder, SQ shell, and superflat base.

Cassette Tape

• MA-90 — TDK MA-90 metal-bias cassette — street prices of $3.79–$4.49 in 1983–86 dealer listings, positioned below the MAR-90 in TDK's metal line.

Media

• AD C-90 — TDK AD C-90 blank audio cassette, little documented; period retail ads list it at $1.39 in High Fidelity, Oct 1980. This page has production dates.
• D — TDK D (documented 1979–1980) — TDK's budget-priced workhorse compact cassette, shown in period Stevie Wonder-era ads; little else is on record.
• D-30 — Little is documented about the TDK D-30 — in fact, the archive's research file for it is empty.
• D-46 — TDK D-46 blank cassette — a thin record; known from a 1991 HiFi/Stereo Review guide listing it at $1.60 for 46 minutes. With when it was made.
• D-C60 — Obscure TDK D-C60: little documented beyond 1981 Audio classified ads listing it at $1.35. Presumed a blank 60-minute cassette.
• KROM-02 — Little is documented about the TDK KROM-02, an early-1970s chromium dioxide cassette. Period ads and an Audio magazine frequency-response test survive.
• MA-R C-90 — TDK MA-R C-90, an early-1980s metal-alloy blank cassette documented in dealer ads at $11.99–$15.99. Thin but honest archive record.
• MAC-90 — TDK MAC-90 is a little-documented audio model. No specs, dates, or product type are confirmed; period ads show TDK tapes, but never the MAC-90.
• SAC-60 — TDK SAC-60 audio cassette — a little-documented tape known only from early-1980s ads. Period prices and honest limits of the record.
• T-60 — TDK T-60: a 60-minute VHS videocassette from the early 1980s, listed alongside the T-120 in period directories; little else is documented.

Reel To Reel

• L-750 — TDK L-750 Beta videocassette — period mail-order ads priced it near $13 in 1982. Specs remain unconfirmed; a format-era curiosity.

Speakers

• AR-100 — Little is documented about the TDK AR-100 blank audio tape; a 1992 Audio classified ad lists it at $1.39 alongside the SA-X 60.

Unknown

• SA-X C90 — TDK SA-X C90 high-bias cassette (1980): dual-layer Super Avilyn, 580 Oe coercivity, 1,650 gauss remanence, $6.99 list.

Other Models

• HD-11 — TDK HD-11 head demagnetizer: 640-gauss hand-held wand, $34.99, plastic-covered pivoting tip for cassette and open-reel decks.
• LB-1800 — TDK LB-1800 open-reel tape — a 1979–80 long-reel companion to the L-1800, sold at $6.49 in period mail-order ads. Formulation undocumented.
• LX35-90 — TDK LX35-90 open-reel tape: 1,800 ft, $5.39 in 1981 dealer ads, an Akai bias-calibration reference. The workingman's TDK reel.
• MAR-C90 — TDK MAR-C90 (c. 1981) — an obscure TDK audio model known only from Audio magazine classifieds at $11.99.
• SA-X 90 — TDK SA-X 90 high-bias Type II cassette — 45 min per side, $3.50 list, the step-up tape above SA and below metal.