Heathkit HR-10B - Final Assembly; Installation

Page 33
FINAL ASSEMBLY
Refer to Figure 3 (fold-out from Page 26)
for the following steps.
( ) Install four rubber feet on the bottom plate
as shown, Use 6-32 x 3/8" screws, #8 flat
steel washers, #6 lockwashers, and 6-32
nuts.
( ) Mount the bottom plate to the chassis with
#6
sheet metal screws.
( ) Place the cabinet cover over the chassis
and secure it on each side with two 6-32
x 1/ 4" painted truss head screws.
NOTE: The blue and white identification label
shows the Model Number and Production Series
Number of your kit, Refer to these numbers in
any communj.cations with
the Heath Company;
this assures you that you will receive the most
complete and up-to-date information in return,
( ) Install the identification label in thefollow-
ing manner:
1, Select a location for the label where it
can easily be seen when needed, but
will not show when the unit is in oper-
ation, This location might be on the rear
panel or the top of the chassis, or on the
rear or bottom of the cabinet,
2, Carefully peel away the backing paper.
Then press the label into position,
CONTROLS
INSTALLATION AND OPERATION
AM OPERATION
AF GAIN - Turns the Receiver ON or OFF, and
varies the volume in the speaker or head-
phones.
RF GAIN- Varies the amount of gain in the RF
and IF amplifier stages.
BFO TUNE - Makes it possible to tune the in-
jected BFO signal either side of the IF center
frequency for Single Side Band (SSB) and CW
reception.
BAND - Selects one of the five Amateur bands.:
80, 40, 20, 15, and 10
meters.
CAL RESET - Provides fine adjustment of the
oscillator portion of the tuning capacitor for
calibration points.
ANT TRIM - Peaks the signal at the frequency
being received.
MAIN TUNING - Tunes in the desired station,
MUTING - Muting provisions have been in-
corporated in this Receiver. The jumper in-
stalled in the octal plug in a previous step
should be removed and replaced with two sep-
arate wires. These wires are then connected to
an antenna relay so that when the relay is in the
receive position, the wires are shorted to-
gether activating the Receiver; when the relay is
in the transmit position, the wires are open
muting the
Receiver.· When this method of
muting
is used the STBY-REC switch is left
in the RE C position.
STBY-REC Switch - REC
CAL
-OFF Switch - OFF
BAND Switch - Desired Band
BFO-OFF Switch - OFF
AVC-ON Switch - ON
RF GAIN - Maximum clockwise
ANL-OFF - OFF
AF GAIN - Comfortable listening level
( ) Rotate the MAIN tuning capacitor until an
AM signal is tuned in. Proper tuning of the
AM signal will be indicated by maximum
deflection of the "S" meter.
( ) Rotate the ANT TRIM capacitor for maxi-
mum signal str~ngth. Once this adjustment
has been made,: it should not be necessary
to readjust it except when changing bands.
NOTE: When listening to an extremely strong
signal, the RF GAIN control should be "backed
off," turned counterclockwise, to prevent block-
ing of the Receiver.
CW OPERATION
STBY-REC Switch - REC
CAL-OFF Switch - OFF
BAND Switch - Desired band
BFO-OFF - BFO
BFO-TUNE - 12 o'clock
AVC-OFF - OFF
RF GAIN - Comfortable listening
AF GAIN- 3 o'clock