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HEWLETT-PACKARD

JOURNAL
T E C H N I C A L I N F O R M A T I O N F R O M T H E - h p - L A B O R A T O R I E S Vol. 7 No. 8

JBLISHED BY THE HEWLETT-PACKARD COMPANY, 275 PAGE MILL ROAD, PALO ALTO, CALIFORNIA APRIL, 1956




A New DC -10 MC Oscilloscope
with Dual -Trace and High -Gain Preamplifiers
THE second of the new -hp- oscilloscopes is common waveforms so that sweep adjust
designed as a wide-range dc-10 megacycle ments are reduced to a minimum.
measuring instrument with many electrical and 1 Trigger level and slope controls permit
mechanical features that give it a high order of selection of trigger point.
performance and ease of use. In addition, flex ' The sweep can be expanded 1 00 times to
ibility has been assured by designing the instru give an effective sweep length of 1 ,000 cm.
ment to use plug-in vertical preamplifiers A multi-turn positioning control permits
which increase the variety of measurements any 1 0-cm portion of the expanded sweep
that the oscilloscope can make. Two such pre to be displayed.
amplifiers are presently available: a dual-chan ' Panel lamps automatically indicate when
nel dc-10 megacycle 50 millivolt /cm preampli the sweep magnifier is used and when the
fier which is arranged to permit either simul fastest calibrated sweep is exceeded.
taneous or single display of its two channels; 1 The oscilloscope has a single-sweep provi
and a high-gain dc-10 megacycle 5 millivolt/ sion which is further designed so as to be
cm single-channel preamplifier. electronically re-armable from an external
Other leading features of the new design are: delay generator to obtain a delayed trig
* Controls are functionally grouped and are gered sweep.
unusually simple for an oscilloscope of this ' The probes supplied have a slim, pen
class. holder style design which makes them
* The sweep is automatically triggered by especially easy to use.




Fig. 2. Probes for new oscilloscope have slim easy-
to-use shape and flange-operated alligator clips.
Probe capacity can be ad justed u'ithoi/t tools merely
by loosening finger-operated nut at right of second
flange. See description on p. 5.




Fig. 1. (At left.) New -hp- Model 150A DC-10 Me Oscil
loscope has been designed with such special features as a
lOOx magnifier, automatic triggering, electronically re-
armable single sweep, and plug-in preamplifiers. Many
mechanical features are also included.




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