Playmate Car-Portable 800T
World Radio Ltd.; London
- Land
- Grossbritannien (UK)
- Hersteller / Marke
- World Radio Ltd.; London
- Jahr
- 1963 ?
- Kategorie
- Rundfunkempfänger (Radio - oder Tuner nach WW2)
- Radiomuseum.org ID
- 168716
Klicken Sie auf den Schaltplanausschnitt, um diesen kostenlos als Dokument anzufordern.
- Anzahl Transistoren
- 6
- Hauptprinzip
- Superhet allgemein; ZF/IF 470 kHz; 3 NF-Stufe(n)
- Anzahl Kreise
- 5 Kreis(e) AM
- Wellenbereiche
- Langwelle, Mittelwelle (LW+MW).
- Betriebsart / Volt
- Trockenbatterien / 9 Volt
- Lautsprecher
- Dynamischer LS, keine Erregerspule (permanentdynamisch)
- von Radiomuseum.org
- Modell: Playmate Car-Portable 800T - World Radio Ltd.; London
- Bemerkung
- Portable radio suitable for use in a car. Seperate aerial circuit for use in car avoids interference pick-up from ferrite aerial.
- Datenherkunft
- -- Schematic
- Literatur/Schema (1)
- Radio And Television Servicing books (R&TVS)
- Autor
- Modellseite von Keith Staines angelegt. Siehe bei "Änderungsvorschlag" für weitere Mitarbeit.
- Weitere Modelle
-
Hier finden Sie 7 Modelle, davon 3 mit Bildern und 3 mit Schaltbildern.
Alle gelisteten Radios usw. von World Radio Ltd.; London
Sammlungen
Das Modell Playmate Car-Portable befindet sich in den Sammlungen folgender Mitglieder.
Forumsbeiträge zum Modell: World Radio Ltd.;: Playmate Car-Portable 800T
Threads: 1 | Posts: 4
AS many members will know, AF117 and similar transistors such as AF115,116, and OC170/171 were used in a great many British made radios of the 1960s & early 70s. Due to the method of construction employed in the manufacture of these transistors, together with the fact that they are now between about 45 and 55 years old, they are prone to developing internal leaks or short circuits between one or more electrodes or between these and the metal case of the device. This os often referred to, at least on UK Vintage Radio forums as the 'Tin Whisker' problem, and whilst a cure can sometimes be effected, I prefer to replace transistors of this type with later devices such as the AF127. However these are now becoming scarce and relatively expensive at may £3.00 or £4.00 each in the UK, so recently I have used a less expensive alternative, such as the Russian made GT322A or 322B, often available from eBay for around £1.00 each. These work very well in the radios to which I have fitted them, most recently a Roberts R300 portable, without needing any circuit alterations or modifications.
Michael Goscombe † 1.8.20, 09.Apr.16