Transistor Analyser CT446
Avo (Brand), Automatic Coil Winder and Electrical Equipment Co., Avo Ltd; London
- País
- Gran Bretaña (GB)
- Año
- 1960 ??
- Categoría
- Aparato de medida y servicio (Equipo de laboratorio).
- Radiomuseum.org ID
- 119566
Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.
- Numero de transistores
- 5
- Semiconductores
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- Pilas / 14 × 1.5 Volt
- Altavoz
- - - No hay salida de sonido.
- de Radiomuseum.org
- Modelo: Transistor Analyser CT446 - Avo Brand, Automatic Coil
- Ancho, altura, profundidad
- 15.5 x 5.5 x 11 inch / 394 x 140 x 279 mm
- Anotaciones
- Military version of the Avo Transistor Analyser Mk I (Mk 1).
- Peso neto
- 6.8 kg / 14 lb 15.6 oz (14.978 lb)
- Procedencia de los datos
- - - Data from my own collection
- Autor
- Modelo creado por Keith Staines. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
-
Donde encontrará 82 modelos, 79 con imágenes y 41 con esquemas.
Ir al listado general de Avo (Brand), Automatic Coil Winder and Electrical Equipment Co., Avo Ltd; London
Colecciones
El modelo Transistor Analyser es parte de las colecciones de los siguientes miembros.
Contribuciones en el Foro acerca de este modelo: Avo Brand, Automatic: Transistor Analyser CT446
Hilos: 2 | Mensajes: 4
I discovered today that a far better quality schematic diagram can be found when searching for the OPERATING INSTRUCTIONS for the AVO Transistor Analyser Mk. 2.
The Mk. 2 has a mains power supply, but the bulk of the main circuit is identical (apart from a 3rd push switch to select a 150mV sensitivity with the METER SWITCH in position 1.5V.
The handles are also bent sideways, so that the METER and AMPLIFIER connectors are reachable with test leads with normal straight bananaplugs. The handles for the CT446 are straight above the connectors, making them difficult to connect to.
The Mk2 also has 3 pages (without page numbers) with component listings titled FIGURE 7, FIGURE 8 and FIGURE 9, located nearly at the end of the OPERATING INSTRUCTIONS manual. These component listings are referring to the respective schematic diagrams following thereafter.
Just preceeding these component lists are several (numbered) pages that look like being copied from the CT446 model.
As I was looking for the values of the voltage divider R42 and R41, I noticed that R42 is erroneously listed twice on page 32 : see Item No 3 and No 8, while R41 is missing.
On the lists found further down, in FIGURE 9, both resistors R41 and R42 are correctly showing, apparently with correct values.
When servicing the CT446, these lists and schematic diagrams found in the OPERATING INSTRUCTIONS for the Mk.2 can be of great help finding out the component numberings and values for the CT446.
Paulus van Os, 06.Mar.25
Dear forum members,
The Flemish TV channel VRT broadcasts currently episode 3 of this series.
In the second episode, entitled ARCADIA, Morse a certain moment tries to track a phone call from the kidnapper. They use for this purpose an AVO Transistor Analyser CT446! (and also a Tandberg tape recorder model 84.)
Best regards
Anexos
- Endeavourkopie (59 KB)
- Tandberg 84kopie (65 KB)
Georges Van Campenhout † 28.4.22, 24.Apr.17