Sony TC-K81 Value & Price History
As of 2026-09-21, a Sony TC-K81 has a market value at around $160, parts units around $21.95. Based on 51 estimated sales.
Specifications
| Years produced | 1979–1982 |
| Type | Cassette Deck |
| Brand | Sony |
| Original MSRP | 600 (1979) |
| Inflation-adjusted | ~$2,550 today |
| Market value (sold) | $160 |
Buying notes
Three-head Sony cassette deck. Head condition. Request a recording to verify azimuth and channel balance. Belts and pinch roller replacement needed. Budget $50-70 for rubber. Sony build quality is high in the three-head line.
Parts & supplies
Common maintenance items for the Sony TC-K81. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Sony TC-K81 belt and pinch roller kit on eBay →
- Sony TC-K81 pinch roller on eBay →
- TDK SA90 — Type II (high bias), works in any deck with a Type II setting on Amazon →
- Maxell UR blank cassette — Type I, reliable everyday tape on Amazon →
- Cassette head cleaner — wet-type for capstan and heads on Amazon →
- 99% isopropyl for transport cleaning (avoid lower concentrations) on Amazon →
- Cassette head demagnetizer — reduces noise and distortion over time on Amazon →
Purchases through these links may earn StereoWorth a small commission at no extra cost to you. See our affiliate disclosure. Repair budgeting: what vintage stereo repair actually costs.
Comparable models
- Sony TC-K99 $190
- Sony TC-K690 $185
- Sony TC-K7II $11
Current listings
Live listing data loads after the next price sync.
Search Sony TC-K81 on eBay → Search Sony TC-K81 on Reverb →Track this model
Get an email when the price drops below your target.
No spam. One email when the price hits your target. Unsubscribe anytime.