The MFJ-422B/422B-X is designed to mount on the BENCHER-paddle resulting in a compact, one-piece Keyer/Paddle combination. The improved Curtis 8044 ABM Keyer IC is used in the MFJ-422B/422B-X to make perfect code transmission easy and pleasant. Controls are located for easy access while operating.

Get the combo or just the keyer for your MFJ iambic paddle. Get adjustable weight, tone. Front panel volume, speed controls (5-65 wpm). Built-in dot dash memories, speaker, sidetone and auto or semi-auto/tune modes. Keys solid state or grid block. Fully shielded RF tight. 9 volt battery or 110 VAC with MFJ-1312D.

View and Download MFJ Enterprises MFJ-422B owner's manual online. ELECTRONIC KEYER PADDLE. MFJ-422B measuring instruments pdf manual download. Also for: Mfj-422b-x.

View and Download MFJ -422B owner's manual online. Electronic Keyer Paddle. MFJ-422B industrial electrical pdf manual download. Also for: Mfj-422b-x.

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MFJ's most popular keyer is small in size, big in features. It gives you adjustable weight and tone and has front panel volume and speed controls (5 - 65 wpm). Has built in 500 character non-volatile MessageMemory(tm), dot-dash memories, speaker, sidetone and automatic or semi-auto/tune modes.

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This sale is for MFJ Pacesetter Electronic Keyer Paddle model MFJ-422B. Unit was only tested for power and does power on. I don't have a way to fully test it. Unit is in excellent condition. Comes with power supply, connection cable, paper, and original box. The box is in bad condition. The paper is yellowed. Comes exactly as pictured.

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Use it on my old FT-101 - really like it. 9V batteries are getting pricey, so I found a 9 volt walwart and hardwired it. No fun for practicing as it never leaves the bench now. Fully adjustable and works like it should. Time Owned: more than 12 months. For the money you cannot beat it.