The is a classic HF amateur radio transceiver from the late 1960s and early 1970s. It is widely recognized as a rebranded version of the Yaesu FT-200 (also known as the Henry Radio "Tempo One" in the US), produced for the European market through the Swiss-based company Sommerkamp. Technical Specifications & Performance
Hybrid architecture. It utilized solid-state transistors for the low-level receiver and transmitter stages to ensure stability, while relying on rugged vacuum tubes for the driver and final power amplifier (PA) stages.
Leo laughed—a real one, the first in weeks. “You hear anything else out here tonight?”
You can find original manuals and technical schematics for the FT 250 available for download on various specialized electronics websites, and detailed photos are frequently shared in radio collector forums. sommerkamp ft 250
For Morse code enthusiasts, featuring manual keying and a side-tone monitor.
: Supports both Voice Operated Transmit (VOX) and standard Push-to-Talk (PTT) for convenience during SSB operation.
: The transceiver features dedicated "Plate" and "Loading" knobs for the Power Amplifier (PA) section. Proper adjustment is critical to avoid damaging the tubes during transmission. The is a classic HF amateur radio transceiver
The unit boasts a power input of approximately for SSB, translating to roughly 100W of actual output power. A key highlight of the internal design is the heterodyne VFO (Variable Frequency Oscillator), which users often cite for its remarkable stability once the unit has undergone a standard 30-minute warm-up period. Performance and User Experience
While the exact heat output can vary, a device like the FT 250 might offer a substantial warmth suitable for heating larger outdoor areas such as patios, decks, or garden spaces.
: Includes a side-tone for CW monitoring and supports semi-break-in operation. Power & Accessories For Morse code enthusiasts, featuring manual keying and
: Sommerkamp was a Swiss importer that rebranded Yaesu equipment to bypass European import restrictions on Japanese goods.
Here’s what I can tell you about it:
Restoring an FT-250 is a common project for "hollow-state" enthusiasts. Because it shares almost all internal components with the Yaesu FT-200, finding service manuals and replacement parts is relatively straightforward compared to rarer vintage rigs. It serves as a reminder of a transitional period in radio technology where craftsmanship and physical tuning were at the forefront of the amateur radio experience. Sommerkamp FT 250 Shortwave Transceiver