TELE-TECH & - AmericanRadioHistory.Com

SYSTEMS
BASIC "150" assemblies housed in either vertical mobile cabinets
or separate portable cases are available in 1 -, 2 -, 4 -, 6- and
8- channel models. Each is equipped with driver amplifiers of current
feedback design and regulated power supplies for each channel, and
a recorder featuring nine extremely accurate paper speeds on 2- to
8- channel models, five on single channel units. Appropriate plug -in
preamplifiers quickly and efficiently equip a basic assembly for
recording virtually any 0 -100 cps phenomena.
new 8- channel analog system
In addition, specialized and complete Sanborn systems
from 2- to 8- channels are available for recording analog
computer outputs. The newest of these is the eight -
channel Model 158 -5490 illustrated, featuring extreme
compactness, mobility and operating ease. Dual- channel
DC amplifiers with a common power supply for every
two channels measure single -ended or push -pull input
signals. Input impedance 5 megohms each input lead to
ground. Controls include individual -channel attenuators,
position, balance, sensitivity, stylus temperature
and paper speed (0.25 to 100 mm /sec.). Frequency
response is flat to 20 cycles, down 3 db at 60 cycles for
all amplitudes to 4 cm peak to peak.
OSCILLOGRAPHIC
SANBORN
RECORDING EQUIPMENT
2. PREAMPLIFIERS
3.
All Sanborn Preamplifiers and Recorders.
as well as various other units, are available
separately for specialized applications or
use as "original equipment' in other
apparatus. Instruments include the Model
150 -300, 700 Wide Band Driver Amplifier
and Power Supply, for use with low power
galvanometer elements, a 'scope and,'or
panel meter. When equipped with suitable
"150" preamplifier, this amplifier provides
a portable indicator for strain, force.
pressure, temperature, AC watts, audio
level, etc, Other units include the Model
150.1900 Master Oscillator Power Ampli.
fier: Model 150 -3100 Triplexer; Model 601
and 602 galvanometers; Model 150-2900
Dual -Channel DC Amplifier.
UNIT INSTRUMENTS
A choke of twelve "150 Series" plug -in preamplifiers is now available, to equis
systems for any of numerous recording problems. Improved control of input
signals results from attenuator ratios of 1, 2, 5, etc., and calibrated zero suppression
on AC -DC, Carrier, and Low Level models. Types, in addition tc
foregoing three, include: Servo Monitor, DC Coupling, Log- Audio, Chopper
Stabilized DC, AC Wattmeter, Input Coupling, RMS Volt /Ammeter, 40(
cycle Frequency Deviation, and Frequency Meter.
Added to these three aspects of Sanborn Oscillographic Recording Equipment are the basic
advantages of inkless recording in true rectangular coordinates, to provide accurate,
easily interpreted records; high torque galvanometer (10 ma develops 200,000 dyne cm.);
over -all linearity 0.25 mm over middle 4 cm chart width, and 0.5 mm over entire 5 cm charts;
controls for timing, manual and remote coding.
Take advantage of the scope and flexibility of Sanborn equipment to answer your recording
requirements. Sanborn engineers will be glad to provide further information and
application assistance whenever you wish. Contact your local representative or write to
the main office below.
SANBORN COMPANY
INDUSTRIAL DIVISION
CAMBRIDGE 39, MASSACHUSETTS