[Elecraft] FS: K3S-10457, P3-2284, Astron VS-35M

Alan D. Wilcox adwilcox at gmail.com
Mon May 18 13:00:32 EDT 2026


Seller: W3DVX / Wilcox Engineering (lately retired)
Contact: adwilcox at gmail dot com (please reply OFF-LIST)
Asking prices:
   K3S with all options listed below: $2,650
   P3 Panadapter with options and cables: $925
*K3S + P3 bundle*: $3,300
   Astron VS-35M (optional add-on): $150
   MFJ-993BRT remote antenna tuner (optional add-on): $170

Buyer pickup preferred. Will consider shipping at buyer's expense and risk.
Non-smoking household. Excellent condition throughout.

*ELECRAFT K3S — S/N 10457*

Received a full alignment and tuneup in April 2025 — the final service
performed before Wilcox Engineering closed its doors after 15-20 years of
Elecraft repair work.

Installed options:

KPA3 — Internal 100-watt RF power amplifier.
KAT3 — Internal automatic antenna tuner.
KBPF3 — Bandpass filter board for the general-coverage receiver.
KXV3B — Transverter/panadapter interface. Provides the IF output required
         for the Elecraft P3 panadapter (listed below) and external 
transverters.
         Already installed and configured for the P3.
KIO3B — Updated USB/audio interface board. Single USB cable provides CAT
         control, keying, and audio I/O for logging software and digital 
modes.
5 crystal roofing filters (full complement):
         6 kHz, 2.8 kHz, 1 kHz, 500 Hz, 200 Hz
Weighted VFO knobs — Precision aftermarket weighted knobs on both the
main and sub-tuning controls.

*ELECRAFT P3 PANADAPTER — S/N 2284*

Real-time spectrum display and waterfall for the K3S.
Includes all interface cables for direct plug-in via the KXV3B already
installed in the K3S above.

P3SVGA — External VGA/SVGA monitor output. Drive any standard VGA monitor
         for a full-size band display — no squinting at the built-in screen.

P3TXMON — Transmit monitor option. Displays your transmitted waveform
         on the P3 during TX so you can visually verify signal quality, 
ALC action,
         and spectral purity in real time.

*FREE WITH LOCAL PICKUP:* DX Engineering DXE-40VE-1TB Vertical Antenna

40-meter quarter-wave fold-over vertical, corrosion-resistant 6063 aluminum
tubing with stainless steel hardware. No traps, coils, or linear loading.
Fold-over tilt base allows one person to raise or lower the antenna without
climbing.
*Free if you take it with you at pickup of the K3S and P3.*

*OPTIONAL ADD-ON*: MFJ-993BRT Remote Antenna Tuner

300-watt remote IntelliTuner at the base of the vertical. The tuner itself
covers 1.8–30 MHz, matches 6–1600 ohms, with 10,000+ VirtualAntenna
memories for instant recall. *Includes* MFJ-4117 Bias-Tee power injector (DC
fed down the coax — no separate control cable needed). A complete, proven
tuning system for the antenna. *
*

*NOTE*: *The vertical can be tuned from 40-10 only*; it does *not* tune 
160-80 meters.

Cheers, Alan, W3DVX

Please reply OFF-LIST to: adwilcox at gmail dot com




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