Product code: Curtis Electronic Fist Keyer Model EK-39 Vintage Radio Electronics VTG 2024
Have not found another one of these online Here is some info i found on the piece VERY RARE ! the Curtis-keyer The first iambic keyer which appeared on the market in 1969, the "Electronic Fist" EK-38 by John Curtis, K6KU, already extended that plain iambic logic by a dot-memory. In the 1960's John worked for Signetics and he decided that a complete keyer could be implemented on a chip. In 1973 Curtis brought out the 8043 CMOS chip, the first integrated-circuit iambic keyer with dot-memory. Of course no logic is able to foresee and hence it is impossible to compensate for our finger movement being too slow - but logic can remember and so it can compensate for being too quick. The behaviour of the Curtis-keyer can be emulated by the basic iambic set of instructions together with the following dot-memory rule: if any time during generation of a dash-element the dot-lever was hit, generate one extra dot-element ek38 ek39 2024 Lot Deal Wholesale Resale Liquidation Gear Estate Bulk Sale.
Have not found another one of these online Here is some info i found on the piece VERY RARE ! the Curtis-keyer The first iambic keyer which appeared on the market in 1969, the "Electronic Fist" EK-38 by John Curtis, K6KU, already extended that plain iambic logic by a dot-memory. In the 1960's John worked for Signetics and he decided that a complete keyer could be implemented on a chip. In 1973 Curtis brought out the 8043 CMOS chip, the first integrated-circuit iambic keyer with dot-memory. Of course no logic is able to foresee and hence it is impossible to compensate for our finger movement being too slow - but logic can remember and so it can compensate for being too quick. The behaviour of the Curtis-keyer can be emulated by the basic iambic set of instructions together with the following dot-memory rule: if any time during generation of a dash-element the dot-lever was hit, generate one extra dot-element ek38 ek39 2024 Lot Deal Wholesale Resale Liquidation Gear Estate Bulk Sale.