Preliminary identification

Hewlett-Packard 1222A Dual-Channel Oscilloscope

Photo reference

1 uploaded photo

Overview

This is a classic mid-1970s analog dual-channel oscilloscope, a vital piece of laboratory test equipment designed to visualize electrical signals. Featuring HP's signature industrial design, it represents the golden era of American electronic engineering before digital displays took over.

Story

In 1975, this very machine was the heartbeat of cutting-edge tech labs, helping engineers visualize the invisible flow of electricity. It was built during the dawn of the personal computer revolution, likely testing the earliest microchips.

Maker / Origin

Founded in a Palo Alto garage in 1939 by Bill Hewlett and Dave Packard, HP literally birthed Silicon Valley. Long before they made printers and PCs, they were the world's gold standard for precision scientific instruments, known for over-engineering everything they touched.

Condition & Value

The unit shows visible dust, minor surface grime, and some yellowing of the plastic bezel consistent with age and storage in a garage or workshop. It is currently untested; if the internal CRT screen is burned out or the capacitors have failed, the value drops to parts-only pricing.

Full Research

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Sold comps, value drivers, and venue guidance pulled from recent auction results.

Build on this identification

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Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

  • Strong maker attribution with credible period details
  • Better-than-average condition for the category
  • Broader demand rises when presentation and finish feel intact

Concerns

  • Decorative-only demand limits the ceiling
  • Surface wear or missing provenance can compress the range fast
  • Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps
Regional auction· Jun 2024
$1,280

Signed example with light edge wear and original frame.

Dealer archive· Mar 2024
$1,450

Comparable format with stronger provenance and cleaner surface.

Marketplace sale· Jan 2024
$980

Smaller related piece with visible craquelure and trimmed margins.

Estate platform· Oct 2023
$1,150

Period match with softer condition and weaker subject matter.

Auction result· Aug 2023
$1,375

Close market lane comp with similar material and presentation.