Don Jackson, W5QN
Boatanchor Legends · Tribute No. 48 Active · CCA Technical Editor Don Jackson, W5QN The Measurement Engineer of the S‑Line — the man who put real numbers behind the Collins legend, one careful analysis at a time ✍ Mike Peace…
2026 – Thirteen current SDR Receivers and Transceivers
Thirteen current SDR receivers and transceivers, compared for one thing that matters most to those of us who still copy Morse by ear and chase weak SSB DX: HF CW and SSB receive performance. The grid rates each unit, identifies…
Tempo One / Yaesu FT‑200: Chasing Down “No RF Output”
Boatanchor Bench Notes · Sweep-Tube Hybrids Tempo One / Yaesu FT‑200: Chasing Down “No RF Output” A systematic bench walk-through for the hybrid FT-200 family (Henry Tempo One, Yaesu FT-200, Sommerkamp FT-250) — how to read the symptoms, isolate the…
Why Does My FT-2000D Only Make 100 Watts?
Reader Question · Fox Tango International Why Does My FT-2000D Only Make 100 Watts? Diagnosing the half-power Yaesu FT-2000D — the 50 V PA rail, the SD2931 finals, ALC drift, and the misidentification trap. “I have a Yaesu FT-2000D that is supposed…
Hammarlund SP-600 JX-1
A complete electrical & mechanical rebuild reference Hammarlund Restoration Series Hammarlund SP-600 JX-1 A complete electrical & mechanical rebuild reference Signal Corps R-274A/FRR · Hammarlund Model 31406-1 · by Mike Peace VK6ADA / r-390a.net Administrator The Hammarlund SP-600 is one…
Driving a Collins KWM-2A or 75S-3B with an Electronic Specialty Products DDS VFO
Reader Question · from Rich, WA6KNW Driving a Collins KWM-2A or 75S-3B with an Electronic Specialty Products DDS VFO Q: “Does anyone have the manual for hooking up the Electronic Specialty Products DDS VFO (the N3ZI DDS-based unit) to a…
KWM-2A Clinic: When the Preselector Peak and Grid Drive Peak Don’t Agree
KWM-2A Clinic: When the Preselector Peak and Grid Drive Peak Don’t Agree A good question landed on the reflector recently from Lenny, WB6QAZ, who is bringing a round-emblem KWM-2A back to life. The radio is working well on both receive…
Yaesu FT-101E — Parts Substitution & Sourcing Reference
Yaesu FT-101E — Parts Substitution & Sourcing Reference Common failure points, modern equivalents and procurement notes for the FT-101E hybrid transceiver (12BY7A driver + 2×6JS6C finals; otherwise solid-state, dual conversion: 5 MHz 1st IF, 9 MHz VFO, 3.18 MHz 2nd IF). 20 Tracked Parts 7…
The Collins R-389, R-390 and R-390A
VK6ADA Technical Reference · Boatanchor Files The Collins R‑389, R‑390 & R‑390A Development, deployment, and a practical operator’s guide to the finest HF receivers of the vacuum-tube era — written for amateur radio operators and shortwave listeners, fact-checked against the…
Carol Maher – W4CLM
Boatanchor Legends — A Tribute Series Carol Maher, W4CLM The keeper of the Fox Tango flame — who took a dormant newsletter club and built it into the definitive online home for Yaesu owners the world over. Some legends of…
Milton Lowens, WA2AOQ · N4ML
Boatanchor Legends — A Tribute Series Milton Lowens, WA2AOQ · N4ML The retired engineer who answered one radio’s design flaw by founding the most influential users group in amateur radio history — and proved that one man, one typewriter, and…