TB 9-6515-200-35
Table 4. Squaring Circuit
The pulse amplitude must be measured and adjusted as
necessary by comparison with the output of dc voltage
(1) Adjust R24 until ac/dc voltmeter indicates 0.00 V
(R).
should be repeated as necessary to ascertain the most
(2) Adjust R25 until ac/dc voltmeter indicates -10.00
accurate comparison.
V (R).
(2) Adjust pulse generator controls to produce a2 ma
(3) Adjust R23 until ac/dc voltmeter indicates -10.00
V (R).
using dc voltage standard and frequency counter.
(4) Repeat a(1) through (6), and if required, readjust
(3) Connect pulse generator between TP1 and TP4
R23, R24, and R25 as required for best in-tolerance
(fig. 1), using adapter and two leads (Bl and B4).
condition. The three adjustments are interacting.
(4) Adjust pulse generator to manual trigger mode.
(5) Apply a single pulse to TI by depressing pulse
a. Performance Check
generator manual pushbutton. Adjust R36 (fig. 1) for
(1) Set RANGE switch to TRAPEZOID 40 Ws.
minimum drift.
NOTE
(6) Repeat technique of (1) through (5) above, using
In the following check, pulses of various widths and
values listed in table 5. If TI meter does not indicate
amplitudes are required. The output of pulse generator
w i t h i n limits specified, perform appropriate
(A7) is not calibrated. The pulse width must be measured
adjustments.
and adjusted as necessary, using frequency counter (A5).
Change 1
5