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SR-50 Slide Rule Calculator
$20.00 ⚠️ High Price Buy on eBay
Asking Price
5 days ago
Listed 2026-05-20
Millville, New Jersey, US
From listing #385215: 1974 TEXAS INSTRUMENTS SLIDE RULE CALCULATOR SR-50 TESTED DOES NOT WORK
View Listing
Vintage 1974 Texas Instruments SR-50 slide rule calculator with adapter and case; does not work.
Item Details
Brand:
Texas Instruments
Item Type:
Computer
Calculator
Computer Model:
SR-50
(1974-1977)
Platform:
TI Calculator
Cosmetic condition:
Good - Moderate wear, normal for age
Functional condition:
Untested - Not tested, unknown condition
Comes With
Texas Instruments SR-50 - Computer Market Overview
Based on
26 sold
computers,
one should expect to pay ~$16 for a working unit.
However, this unit's condition (Good / Untested) brings its guide price to $17.
12 others are also listed for sale.
This item ($20)
is 1.2x the guide price (~$17).
Price Position — Good / Untested (11 sales)
$3
Median $15
$50
This item: $20
Price by Condition
| Refurbished | Fully Working | Partially Working | Powers On | Untested | Not Working | For Parts | |
|---|---|---|---|---|---|---|---|
| New | — | ~$161 | — | — | ~$129 | — | — |
| Mint | — | ~$133 | ~$100 | ~$93 | ~$106 | — | — |
| Excellent | ~$67 | ~$61 | ~$46 | ~$43 | ~$49 | ~$21 | ~$15 |
| Good | ~$42 | $38 (3) ~$38 | $15 (1) ~$28 | ~$27 | THIS ITEM $15 (11) ~$30 | $35 (1) ~$13 | ~$9 |
| Fair | — | $45 (1) ~$28 | ~$21 | ~$20 | $12 (3) ~$23 | $15 (1) ~$10 | $20 (1) ~$7 |
| Poor | — | ~$21 | ~$16 | ~$15 | $15 (1) ~$17 | $25 (3) ~$7 | ~$5 |
$X (N) — Median sold price (N sales)
~$X — Guide price
This item
$X (N) — TI Calculator (platform)
Guide prices based on 26 sales, Good/Fully Working baseline ~$37.
Click a cell to browse matching listings.
Compare to TI Calculator platform aggregate:
