Overview
The Stethotracer SA-114 is a signal tracer instrument produced by Don Bosco Electronics. As a complementary test tool to the Mosquito signal injector, the Stethotracer SA-114 traces audio and RF signals throughout radio and electronics circuits, making it essential for vintage radio repair, electronics troubleshooting, and equipment diagnostics. This portable test instrument was widely used by service technicians and hobbyists throughout the 1960s and beyond.
Key Features
- Portable signal tracer for audio-frequency and RF circuit troubleshooting
- Sealed construction for durability and consistent performance
- Includes multiple adapter tips for connection to various circuit test points
- Pairs with Don Bosco Mosquito signal injector for complete signal injection and tracing capability
- Vintage test equipment valued by radio repair technicians and electronics hobbyists
Technical Specifications
- Manufacturer: Don Bosco Electronics Inc., Hanover, New Jersey
- Model: SA-114 Stethotracer
- Type: Signal Tracer
- Application: Electronics repair, signal tracing, circuit diagnostics
- Construction: Sealed design
Typical Applications
The Stethotracer SA-114 is used to trace signal flow through radio receiver circuits, audio amplifiers, and other electronic equipment. Service technicians use it in conjunction with the Mosquito signal injector to isolate faults and verify proper signal propagation through stages of audio and RF circuits. The instrument is particularly valuable in vintage radio restoration, troubleshooting classic electronics equipment, and educational demonstrations of circuit behavior.
Compatibility & Replacements
Compatible With
- Don Bosco Mosquito signal injector (complementary instrument)
- AM/FM radio receivers and tuners
- Audio amplifier circuits
- RF and intermediate-frequency circuits in vintage electronics
- General electronics test and service work
Replaces / Drop-In Replacement For
The Stethotracer SA-114 is a vintage instrument no longer in production. Verify compatibility with your specific application and equipment before ordering.
Works With
- Don Bosco Mosquito signal injector for integrated testing workflows
- Standard radio service benches and electronics workstations
- Vintage and antique radio repair documentation and service manuals
