Equipment information

Farnell Instruments LF1 Oscillator
Farnell Instruments
Model LF1
Date 1976
Category Measurement instruments
Group Oscillator
Description Sine-Square Oscillator
                                    The LF1, LFP1 and LFM4 form a range of oscillators providing
sine and square waves from 10Hz to 1MHz with an output of up
to 12V pk-pk.
Frequency is continuously variable over five decade ranges
by a rotary control with range changes accomplished by push
button switching. Output amplitude is continuously variable
between four switched ranges with maximum outputs of 12mV
pk-pk; 120mV pk-pk; 1.2V pk-pk and 12V pk-pk. The scale
around the 'Fine Amplitude1 control of the LF1 and LFP1
provides an indication of output amplitude and in the case
of the LFM^ the output is monitored by a meter scaled in
volts pk-pk and dBm.
The 'Common' output terminal is bonded electrically to the
chassis and in turn to the mains earth.
For greater frequency accuracy and stability a reference
signal may be coupled to the 'sync.1 socket. The sine wave
output of this socket may also be used to trigger ancillary
equipment such as an Oscilloscope.
The LFM^i offers the additional facilities of TTL output
when operating on square wave, and operation from internal
batteries as well as mains.
The LFP1 is the power version of the LF1 and offers all the
facilities of this model plus a power Amplifier capable of
delivering up to 3 watts into a 3Ω load over the audio
bandwidth of 25Hz to 20kHz.
The instrument is normally supplied wired for operation from
150V to 260V 50/60Hz inputs. With the exception of the LFP1
this operating voltage may be changed to 95-130V by an
internal wiring change. A mains 'ON' neon indicator is
located on the front panel.

These manuals are available for the above equipment:

Manual Type Service and User Manual Farnell-7573-Manual-Page-1-Picture
Pages 9
Size 3.43 Mbytes (3600036 Bytes)
Language english
Revision 1
Date December 1976
Quality Scanned document, all readable.
Upload date
MD5 4daee11868c1c8d75f37661f44a09cc2
Downloads 549 since 25 January 2016
Schedule of equipment supplied
 ...  1
Graph of harmonic distortion
 ...  5
Graph of power output distortion (LFP1 only).. 6
Operating instructions
 ...  7
Circuit description
 ...  8

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