MFJ-401D
Econo Keyer

Discontinued!

Please see
the MFJ-407E

The MFJ-401D EconoKeyer II is a microprocessor controlled keyer that provides iambic key operation and dot-and-dash memory to make sending perfect code easier. It has tunable code speed, code weight, and sidetone frequency; it supports both direct and grid-block keying outputs. You also get to choose between Iambic Type "A" and Type "B" keying. Key input is 3 conductor 1/4 inch jack. Keying output is an RCA phono jack.

The MFJ-401D requires 9 volt battery (not supplied) or 12 VDC 2.1mm. Operation from 110 VAC is possible with the optional MFJ-1312B power supply. Click here to view larger. Click here to view Owner's Manual [PDF 86K].