Monoblock CMA15 Kitset
Radford Electronics Ltd.; Bristol
- País
- Gran Bretaña (GB)
- Fabricante / Marca
- Radford Electronics Ltd.; Bristol
- Año
- 1962 ?
- Categoría
- Amplificador de audio o mezclador
- Radiomuseum.org ID
- 360485
- Numero de valvulas
- 5
- Principio principal
- Amplificador de Audio
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- Red: Corriente alterna (CA, Inglés = AC) / 50 Hz, 200/240 Volt
- Altavoz
- - Este modelo usa altavoz exterior (1 o más).
- Potencia de salida
- 15 W (undistorted)
- Material
- Metálico con lámparas a la vista.
- de Radiomuseum.org
- Modelo: Monoblock CMA15 [Kitset] - Radford Electronics Ltd.;
- Forma
- Sobremesa, caja, normalmente con tapa (panel no inclinado).
- Anotaciones
-
The Radford MA15 series of amplifiers was a well-regarded line of vacuum tube audio amplifiers produced in the 1960s.
There were four versions:
- MA15 Mk1: This was the original version of the amplifier.
- MA15 Mk2 Early: An updated version of the original design.
- MA15 Mk2 Late: A further refinement of the Mk2 design.
- CMA15: This was a kit version of the MA15 amplifier.
CMA15 (Kit Version)
- Kit version of the MA15 likely based on the Mk2 Late design
- Available for DIY enthusiasts to build themselves
- Priced at approximately 60% of the fully assembled versions
- Included detailed construction articles in Hi-Fi News (June to September 1962)
Radford CMA15 Output Transformer (T2063G)
- Resonance Frequency: The CMA15, the same as the Mk2 late output transformer was significantly improved, pushing its first resonance to approximately 150kHz.
- Performance: This allowed for reduced phase shifts, better high-frequency stability, and lower distortion across the frequency range. It also enabled the amplifier to deliver its rated power up to 20kHz.
- Design Complexity: The improved design contributed to a more refined sound and greater technical performance, addressing the limitations of the Mk1.
These enhancements in the Mk2's & CMA15 output transformer were a critical factor in its superior performance compared to the Mk1.
The kitset was priced at £17/15/- in August 1963.
- Precio durante el primer año
- 17.75 GB £
- Mencionado en
- -- Original prospect or advert (HiFi News (UK) Sep 1962)
- Documentación / Esquemas (1)
- Wireless World (The), London (WW, 79) (August, 1963 Page 24)
- Autor
- Modelo creado por Gary Cowans. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
-
Donde encontrará 32 modelos, 25 con imágenes y 10 con esquemas.
Ir al listado general de Radford Electronics Ltd.; Bristol