Discontinued MFJ CK-8045ABM - Curtis Keyer Chip

The legendary Curtis keyer chip is now the revolutionary new Curtis 8045ABM with more features than ever at no extra cost! Features include: Built-in 89 character memory, expandable non-volatile memory, true sine wave sidetone with soft rise/fall times eliminate harsh keyclicks for beautiful sounding sidetone. You also get type A or B iambic keying, dot-dash memory, adjustable weight, tone and speed, automatic or semi-auto mode, low current drain ... choose... 28 pin

Specifications

Supply Voltage: 4 Vdc min., 6 Vdc max. (5 Vdc recommended)

Operating Current: Depends on sidetone and keying arrangement

Speed Range Approximately 5 to 65 WPM

Iambic Operation: A or B iambic. Automatic or semi-automatic

Weight Control: Weight can be added or subtracted

Dot-Dash-Space Ratio: 1:3:1 standard

Sidetone Generator: Internal using external low-pass filter -- about 300 to 1200 Hz

Message Memory: 85-character built-in volatile or 507-character external non-volatile

Key Debouncing: Internal logic

Package: 28-pin SDIP (SOIC package available)