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
CW Morse Pocket Straight Key
≈ $20–30
3D-printed, ball-bearing pivot, surprisingly crisp action for the price. Light enough that you'll want to tape it down or hold it, but as a first key to find out whether straight-key sending suits you, nothing touches it at this price.
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
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.
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
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.
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