Simple 7 MHz QRP CW Rig

This is the schematic of my very first solid-state 7 MHz QRP CW transmitter. A heatsink is required for the transistor.

Simple 7 MHz QRP CW Rig - schematic

The part count is less than 10. The 1000 pF variable is adjusted for maximum brilliance of the lamp.

DX on this rig was ~1000km (VU2SL - OM Dalvir in Valsad).

Related post: Improved 7 MHz QRP CW Rig
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Simple CW Keyer

This is a homebrew IC keyer using a 7400, a 7473 and two 555s. Here's a schematic similar to the one used for this project.

Simple CW Keyer

The difference is that I used two 555s instead of one 7413 for the clock and tone generator functions.

Simple CW Keyer - inside view

The paddle is made of spring strip, silver contacts, nuts, screws and bakelite pieces. The enclosure is also homebrewed.
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