Heathkit HD-1250 - Relative Q

I
1
1N34
-
270
TO
|
P"
1000
PF
J
VTVM
RF
PROBE
SOLID
STATE
IP
METER
HEATHK1T
no-mo
Figure
3-1
NOTE:
The
result of the
readings can be
plotted
on
a
graph
similar to that
shown in
Figure
3-2.
7.
Calculate
the Q of the
circuit using the
following formula:
F
0
Q
=
F
2
-F,
Relative
Q
The Relative Q
of
a
circuit may be
determined by observing the
indication of
the
Meter when it is used in the
injection mode.
As you
observe the dip
in the
meter pointer, a
sharp dip and rise at
resonance
indicates a
circuit having a
relatively high Q.
A broad,
shallow dip in the meter
indication
indicates a
relatively low Q.
70.7%
OF
PEAK VALUE
FREQ.