Buying guide · updated 2026-06-12

The best Morse code straight keys

A straight key is the simplest instrument in radio: a sprung lever and a contact. That simplicity is why a good one lasts a century — and why a bad one teaches you bad timing. Four picks, one honest verdict each.

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Best first key

Xiegu VK-5 Mini Straight Key

A compact CNC-aluminium straight key with silver-plated copper contacts and a standard 3.5 mm plug. Xiegu build it to pair with their own radios (G90, X6100, X6200, X5105, G106), but the 3.5 mm jack is universal — it will key anything that takes a straight key, including a PC interface for practice.

Pros

Machined metal base, not plastic
Silver-plated contacts
Standard 3.5 mm jack works with any rig

Cons

Small footprint means a light key — anchor it for heavy sending
Marketed for Xiegu rigs, so check your own connector

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Best classic action

Kent KT-1 Hand Key

≈ $80–120

A heavy British-style key on a wooden base with a long lever arm and silky bearings. This is the key people imagine when they imagine Morse. Buy-it-once quality; spares available from Kent for decades.

Pros

Heavy base — never moves
Genuinely lovely action at slow and medium speed
Repairable, serviceable, heirloom-grade

Cons

Price
Long-arm style takes a different wrist technique than navy-style keys

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Best American classic

Vibroplex Straight Key

≈ $120–180

The oldest name in keys, still made in the USA. Navy-style short-arm action on a heavy base. If the budget allows and you want one straight key for life with a brand that will outlive us all, this is it.

Pros

Superb fit and finish
Heavy enough to stay put
Holds resale value

Cons

Premium price for a beginner
Overkill if you'll move to paddles within a year

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Best character per dollar

Military-surplus key (Czech / J-38 style)

≈ $25–60

Cold-war surplus keys — Czech army keys and American J-38s especially — are plentiful, robust, and full of history. Action quality varies key to key, so buy from a seller with photos of the actual unit.

Pros

Real history on your desk
Built to survive a war
Often cheaper than new plastic

Cons

Condition lottery
May need cleaning and contact polishing on arrival

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How to choose (60-second version)

Weight beats features. The single biggest difference between a frustrating key and a lovely one is whether it stays put on the desk. Heavy base, or screw/tape it down.
Adjustability matters more than materials. You want adjustable contact gap and spring tension. Tight gap + light spring for speed; wider + heavier while learning.
Straight key or paddle first? Straight key builds timing in your arm — every dit length is yours to get right. Paddles (see the paddle guide) make perfect elements automatically but need a keyer. Many learn on a straight key for a month, then move to a paddle and keep the straight key for fun. Neither choice is wrong.
Don't buy two cheap keys. One cheap key to find out you love sending, then one good key for life, is the efficient path.

Whatever you key with, practice material is free: the random CW generator gives you realistic text and the timing calculator shows exactly how long your dits and dahs should be at any WPM.