Heathkit DX-40 AM-CW Transmitter
DX-40 Schematic Diagram- 240K .jpg scanned from construction manual.
NOTE: This DX-40 has a Littlefuse external FUSE PLUG and a homebrew ventilated crystal access cover.
Heathkit DX-40 Transmiter
- First Sold: 1958
- $64.95
- 80-10 meter bands (Including 11 meters)
- 6CL6 xtal Oscillator
- 6CL6 Buffer
- 6146 RF Amplifier
- 12AX7 Microphone Pre-amp
- 6DE7 Control Carrier Screen Modulation
- 5U4GB Rectifier
- 3 internal crystal sockets, switched at rear apron.
- 75W CW - 65W Controlled Carrier AM
- VFO input - Heath VF-1 Matching VFO
- Accessory Socket: B+/- and filiament for VFO, 110VAC Antenna Relay Source, Keying Circuit.
- Schematic Diagram Soon!
See WB6FZH 1963 Novice and General Station with his DX-40 and ARC-5 VFO. This photo appeared in QST Magazine when he won the ARRL Sweepstakes Contest Novice Division.
WB6FZH Classic and Military Radio
Last Updated: September 20, 2007