N1MU Marker Generator

Features:

• 12 to 15 VDC DC to DC Converter
• 100 kHz tone generator with passive filter
• Mixer for modulating harmonic-rich input with marker tone
• “Dash Dash Dash” timer and gate circuit
• Sine to square wave signal conditioning

Schematic:

http://tom.2ub.org/n1mu/Marker_Generator.pdf

Bill of Materials:

http://tom.2ub.org/n1mu/Marker_Generator_BOM.xls

(Some items are not used).

Layout:

http://tom.2ub.org/n1mu/Marker_Generator_Layout.gif