Wraase SC-422A SSTV (Slow Scan Television) Converter, manufactured by
Wraase Electronics in Bikiel, West Germany around the 1980s. This
device enabled amateur radio operators to transmit and receive
television images across the world using standard shortwave radio
equipment at normal voice bandwidth - a revolutionary technology for
global amateur radio communications.

MANUFACTURER & SPECIFICATIONS:

• Maker: Wraase Electronics, Bikiel, W.-Germany
• Model: SC-422A SCAN CONVERTER  
• Serial Number: 022145
• Subsidiary Components: Elektro Elco (certified German electronics)
• Era: Late 1970s - Early 1980s

TECHNICAL FEATURES:

Connectors & I/O:
✓ BNC connections for CAMERA, MONITOR, MEMORY (MEM II/MEM III)
✓ LINE and BLANKING inputs
✓ PEN KEYBOARD, TAPE, RX/TX connectors
✓ GND reference point

Front Panel Controls:
✓ AUTO/MAN (automatic/manual mode selection)
✓ RX (receive), TAPE (tape input), PREPARE (memory preparation)
✓ Large main selector: RECEIVE/TRANSMIT switch with multiple positions
✓ Speed selection: SLOW / FAST / TRANSPARENT modes
✓ Grayscale: WHITE / BLACK controls

Adjustment Potentiometers:
✓ BRIGHT (brightness) and WIDTH (image width)
✓ SYNC, GRAYSC (grayscale), DISPLAY, CONTR (contrast)
✓ CAMERA controls (negative, modes I/II/III)
✓ Power on/off switch with fuse protection

Visual Indicators:
✓ Red and green LEDs for operational status
✓ Original clear window intact

CONDITION:

Physical Condition: Very Good - small scratches visible 
✓ Black glossy chassis - well preserved
✓ All original BNC connectors intact
✓ Control knobs and switches all present and functional
✓ Minor cosmetic wear consistent with age (50+ years)
✓ Clear front window undamaged
✓ Original German warning labels present

Functional Status:
✓ Ready for testing by qualified technician
✓ Perfect for restoration, collection, or historical research

HISTORICAL SIGNIFICANCE:

The Wraase SC-422A represents a landmark in SSTV technology,
succeeding the popular SC-422 model. It was essential equipment for
amateur radio operators who wanted to transmit live television images
over radiofrequency - a technology that allowed real-time visual
communications between radioamateurs worldwide before the internet
era.

German engineering at its finest - Wraase Electronics was renowned for
quality SSTV equipment development.