Buckling Spring (IBM Model M) — The Original Typist's Keyboard
The IBM Model M is the legendary 1980s keyboard with buckling spring switches — built like a tank, sounds like one. Decades later, dedicated typists STILL use them daily. The tactile feedback is unmatched, the durability obscene, the noise unforgettable.
What's a buckling spring?
A coiled spring under each keycap that physically buckles sideways at activation, hammering an electrical contact.
The result:
- Most tactile feedback of any switch
- LOUD click (mechanical contact)
- Heavy actuation (60-70g)
- Distinct "ping" sound character
- Cannot mistake activation
IBM Model M specifics
- First released: 1985
- Buckling spring switches throughout
- Steel back-plate (weighs 5 lbs)
- PS/2 connector (need adapter for USB)
- AT-style layout (101-key US)
- Lifespan: still working after 40 years for many
Modern buckling spring keyboards
Unicomp
- Continues IBM Model M production
- USB versions available
- $100-200 new
- Same mechanism, modern conveniences
Unicomp Model M
- 104-key Windows layout
- Available in many languages
- New Old Stock feel
Used IBM Model M
- $50-300 on eBay
- 30-40 year old keyboards STILL function
- Cult collector market
Pros
Unmatched tactile feedback
You absolutely know when each key activates. Less typo possible.
Durability
Engineered to last decades. Many still original from 1985-1995.
Distinct sound
Some love the sound. Reminiscent of classic typing.
Heavy build
5+ lbs construction. Won't slide on desk.
Repair-friendly
Open construction. Parts available.
Cons
LOUD
Cannot be used in:
- Shared offices
- Apartments with thin walls
- Public spaces
- Anywhere people might be sleeping
Heavy typing force
60-70g actuation. Finger fatigue real for long sessions.
Heavy keyboard
5+ lbs. Not portable.
No modern features
- No RGB lighting
- No media keys
- Often PS/2 (adapter needed)
- No wireless options
Specific layouts
US 101-key. Limited international options.
Who should buy buckling spring
Definitely consider
- Nostalgic typists who used original Model M
- Home users with noise tolerance
- Vintage computing hobbyists
- Long-typing endurance trainers
Skip if
- Office environment
- Shared living space
- Travel often
- Need quiet
Buying guide
New (Unicomp $100-200)
- Pros: warranty, modern conveniences
- Cons: build quality slightly inferior to IBM original
Used IBM Model M ($50-300)
- Pros: original build quality, character
- Cons: aging, PS/2 (need adapter), no warranty
Used Model F (rare, $500+)
- Earlier than Model M
- EVEN MORE tactile
- Cult favorite
- Hard to find
Typing on buckling spring
Adjustment period
- First week: louder than expected, slower
- Month 1: tactile feel addictive
- Long-term: hard to use anything else
Speed adjustment
- Initial slowdown (heavier touch)
- Recovers in 2-3 weeks
- Long-term comparable speed to MX Brown
Caring for vintage Model M
Cleaning
- Open construction allows
- Compressed air for debris
- Damp cloth for keys
PS/2 to USB
- Active adapters available ($10-30)
- Some keyboards have native USB conversions
Drying out
If liquid spilled: disassemble, dry thoroughly. Often survives.
Frequently Asked Questions
Loudest typing switch?
Buckling spring or some clicky mechanicals. Buckling spring distinctly louder.
Will 1990 Model M still work?
YES — typical longevity of these keyboards.
Best modern alternative to IBM Model M?
Unicomp New Model M — same mechanism, new manufacture.
Will Model M help my typing speed?
Tactile feedback helps accuracy → indirectly speed.
Best switch comparison?
Buckling spring most tactile. Topre most refined. MX Blue clickiest but lighter.
Should I bring to office?
NO — far too loud for shared spaces.
Experience legendary typing
For home use, history lovers, premium tactile: try buckling spring once. Unicomp makes new ones.
For more: Best mechanical switches for typists, Topre switches for typing, Best keyboard for touch typing.