Heathkit HD-1250 - Page 45

Page
43
PUSHBUTTON ON/OFF
SWITCH:
DEPRESS TO TURN
DIP METER ON.
PICKUP
COIL
IL1
through
L7): Color
coded
to
match dial scales.
Used with tuning
capacitor
C21 to
determine resonant
peaks
in
unknown circuits or frequency of
detected RF energy.
DIAL SCALE:
Color coded to
indicate
frequency
range of any one
of 7 pickup
coils.
Numerals indicate
resonant
frequencies
in MHz.
TUNING
DIAL:
Varies
capacitance of
variable capacitor
C21 to
obtain resonant
dips tor peaks) on meter.
OSC
LEVEL CONTROL:
Controls
sensitivity of oscillator and detector
circuits.
METER:
Indicates
a sharp dip
(or peak)
when
dip meter coil is
tuned to resonance
with circuit
under
test.
Figure 2-1