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TI-55 Advanced Professional Calculator with Plug Books and Battery
$52.87 ended ❌ Overpriced
Asking Price
Unsold 2026-06-04
Hoschton, Georgia, US
From listing #369205: VTG Texas Instruments TI-55 Advanced Professional Calculator/Plug Books Battery
View Listing
1977 Texas Instruments TI-55 calculator. Plugged in and works, some wear on back plastic. Includes original box and battery (requires external power).
Item Details
Brand:
Texas Instruments
Item Type:
Computer
Calculator
Computer Model:
TI-55
Platform:
TI Calculator
Cosmetic condition:
Good - Moderate wear, normal for age
Functional condition:
Fully Working - Tested and fully functional
Comes With
Texas Instruments TI-55 - Computer Market Overview
Based on
63 sold
computers,
one should expect to pay ~$15 for a working unit.
However, this unit's condition (Good / Fully Working) brings its guide price to $22.
16 others are also listed for sale.
This item ($53)
is 2.5x the guide price (~$22).
Price Position — Good / Fully Working (17 sales)
$5
Median $20
$52
This item: $53
Price by Condition
| Refurbished | Fully Working | Partially Working | Powers On | Untested | Not Working | For Parts | |
|---|---|---|---|---|---|---|---|
| New | — | ~$85 | — | — | ~$68 | — | — |
| Mint | — | ~$70 | ~$52 | ~$49 | ~$56 | — | — |
| Excellent | ~$35 | $50 (1) ~$32 | ~$24 | ~$22 | ~$26 | ~$11 | ~$8 |
| Good | ~$22 | THIS ITEM $20 (17) ~$20 | ~$15 | ~$14 | $14 (34) ~$16 | $9 (4) ~$7 | ~$5 |
| Fair | — | $13 (1) ~$15 | ~$11 | ~$10 | $15 (3) ~$12 | $35 (1) ~$5 | ~$4 |
| Poor | — | ~$11 | ~$8 | ~$8 | ~$9 | ~$4 | $20 (2) ~$3 |
$X (N) — Median sold price (N sales)
~$X — Guide price
This item
$X (N) — TI Calculator (platform)
Guide prices based on 63 sales, Good/Fully Working baseline ~$20.
Click a cell to browse matching listings.
Compare to TI Calculator platform aggregate:
Recently Sold TI-55 Computers
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