Transistor Curve Tracer 575

Tektronix; Portland, OR

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1957–1971
  • Categoria
  • Strumento da laboratorio
  • Radiomuseum.org ID
  • 116198

 Specifiche tecniche

  • Numero di tubi
  • 39
  • Numero di transistor
  • 2
  • Semiconduttori
  • Gamme d'onda
  • - senza
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 105-250 Volt
  • Altoparlante
  • - Per cuffie o amplificatori esterni
  • Materiali
  • Mobile di metallo
  • Radiomuseum.org
  • Modello: Transistor Curve Tracer 575 - Tektronix; Portland, OR
  • Forma
  • Soprammobile con qualsiasi forma (non saputo).
  • Dimensioni (LxAxP)
  • 13 x 16.7 x 24 inch / 330 x 424 x 610 mm
  • Annotazioni
  • 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 netto
  • 32 kg / 70 lb 7.8 oz (70.485 lb)
  • Prezzo nel primo anno
  • 975.00 $
  • Bibliografia
  • - - Manufacturers Literature
  • Autore
  • Modello inviato da Emilio Ciardiello. Utilizzare "Proponi modifica" per inviare ulteriori dati.

 Collezioni | Musei | Letteratura

Collezioni

Il modello Transistor Curve Tracer fa parte delle collezioni dei seguenti membri.

Letteratura

Il modello Transistor Curve Tracer è documentato nella seguente letteratura.

 Forum

Discussioni nel forum su questo modello: Tektronix; Portland,: Transistor Curve Tracer 575

Argomenti: 1 | Articoli: 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

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