Transistor Curve Tracer 575
Tektronix; Portland, OR
- País
- Estados Unidos
- Fabricante / Marca
- Tektronix; Portland, OR
- Año
- 1957–1971
- Categoría
- Aparato de medida y servicio (Equipo de laboratorio).
- Radiomuseum.org ID
- 116198
- Numero de valvulas
- 39
- Numero de transistores
- 2
- Semiconductores
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- Red: Corriente alterna (CA, Inglés = AC) / 105-250 Volt
- Altavoz
- - Este modelo usa amplificador externo de B.F.
- Material
- Metálico
- de Radiomuseum.org
- Modelo: Transistor Curve Tracer 575 - Tektronix; Portland, OR
- Forma
- Sobremesa de cualquier forma, detalles no conocidos.
- Ancho, altura, profundidad
- 13 x 16.7 x 24 inch / 330 x 424 x 610 mm
- Anotaciones
- The 575 Transistor Characteristic Curve Tracer to plot NPN, PNP and diode curves, simulating true operating conditions. Collector supply up to 10 A at 20 V and up to 1 A at 200 V. Base current up to 2.4 A. There is a companion 175 high current unit. There may be multiples of the valves listed. The CRT is not includedin the tube list.
- Peso neto
- 32 kg / 70 lb 7.8 oz (70.485 lb)
- Precio durante el primer año
- 975.00 $
- Mencionado en
- - - Manufacturers Literature
- Documentación / Esquemas (1)
- Funk-Technik (FT) (11/1959, S. 392 - 395 / Beschreibung)
- Autor
- Modelo creado por Emilio Ciardiello. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
-
Donde encontrará 386 modelos, 374 con imágenes y 92 con esquemas.
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Literatura
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Contribuciones en el Foro acerca de este modelo: Tektronix; Portland,: Transistor Curve Tracer 575
Hilos: 1 | Mensajes: 1
When I'd finished the restoration of this magnificent instrument, I noticed what appeared to be a dot-pattern on the trace. This was a mystery, as I didn't recall seeing this when the instrument was first powered.
Extensive investigations yielded nothing: there was no modulation on either the EHT, the grid or the X-plates. However, recalling that the colllector voltage sweep is derived directly from the mains supply (via transformers and an internal variac), I tried addng a 0.47uF X-rated capacitor across the output of the variac (shunt wiper to ground). This largely cured the problem, and confirmed that the noise was mains-derived. Subsequent correspondence with a gentleman in the USA who had exactly the same issue (blog at lazyelectrons.wordpress.com) confirmed the diagnosis; he traced the problem to a modern 9.5W LED lightbulb.
John Sykes, 01.Dec.18