Marconi TF 2337A Metro di livello
Produttore:
Immagine 1 di 1
Se avete altre foto o manuali per la
Marconi TF 2337A potete caricare i file qui .
Modello:
TF 2337A
Data:
1976
Categoria:
Gruppo:
Descrizione:
Automatic Distortion Meter
Informazioni
The TF 2337A Automatic Distortion Meter enables rapid and
accurate measurement of both level and distortion,factors of
audio frequency signals. The need to tune tor fundamental
frequency rejection is avoided, thus operation simply
consists of the selection by push button switches of the
input voltage range, distortion range and fundamental frequency.
The instrument measures distortion in the conventional way,
that is, by filtering out the fundamental component and
comparing the residual with that of the total signal.
However, because of the novel design of the ratio circuit
the need for reference level adjustment prior to distortion
measurement is obviated. Thus fluctuations of the input
level (up to -10 dB) will not affect the accuracy of the
distortion measurement.
The TF 2337A is therefore suitable for repetitive distortion
measurements and because of its simplicity of operation is
ideal for factory testing of mass production units such as
a. f. amplifiers etc. Furthermore as the instrument employs
a multi-stage Twin-'Γ active Filter having a fairly wide
rejection band (66 dB at-+5% of fo), the affect of wow and
flutter on the distortion measurement is negligible.
This attribute is particularly useful for t. h. d.
measurements of output signals on equipment such as tape
recorders and record players.
Owing to the use of field effect transistors in the input
stage, internal noise is low and therefore with input
signals as low. as 10 mV, distortion can be measured down to
0. 01%.
Tipo di manuale:
Servizio e manuale utente
Pagine:
40
Dimensione:
1.80 Mbytes (1887195 Bytes)
Lingua:
english
Revisione:
ID del manuale:
Data:
Qualità:
Documento scansionato, la lettura in parte male, non in parte leggibile.
Data caricamento:
2016 05 28
MD5:
5ea122a1d1a73f512b53b40824fa8787
Scaricamenti:
889
Informazioni
... ... ...
... ...
...
...
...
...
...
...
...
...
...
... ,-*·*
...
...
...
... 32