Heathkit HR-10B Assembly Manual page 38

Basic amateur band receiver
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( ) Place one end of the remaining shaft through
the CAL RESET hole in the front panel and
into the open end of the shaft coupler on
FN. Tighten the setscrew. The end of the
shaft should extend 3/8" beyond the front
of the panel.
(
Insert all tubes in their respective tube
sockets and install the tube shields.
( ) Install the 1/2 ampere fuse in the fuse block.
(Use a 1/4 ampere fuse if the Receiver was
wired for 240 VAC operation. NOTE: This
fuse is not furnished with the kit.)
( ) Place a pilot lamp in each pilot lamp socket.
Install. the sockets on the pilot lamp brackets.
INITIAL
( ) Locate the octal plug and octal plug cap.
Referring to Figure 1, connect a bare
jumper wire between lugs 1 (S-1) and 6
(S-1 ). Now install the octal plug cap.
( ) Plug the prepared octal plug into the
accessory socket on the rear apron.
If
an ohmmeter is available measure the re-
sistance from lug 1 of terminal strip G to
ground. . Mter approximately 30 seconds the
resistance reading should be 30 K!1 or over.
If
it is lower, refer to the In Case
Of
Dif-
ficulty section of the manual.
( ) Set all front panel controls as follows:
(
( )
AF
GAIN
RF GAIN
BFO TUNE
BAND Switch
MAIN TUNING
ANL
AVC
BFO
CAL
STBY-REC
OFF
Maximum clockwise
12 o'clock
80 meters
3.5 me
OFF
OFF
OFF
OFF
REC
Connect an 8 !1 speaker to Speaker jack BA
on the rear apron.
Plug the line cord into an AC outlet supply-
ing the voltage for which the Receiver was
wired (105-125 or 210-250 volts). CAUTION:
Connecting the Receiver to the wrong line
voltage could result in severe damage.
Page 29
( ) Install a 1680.70 kc crystal in its crystal
socket and the 1682.40 kc crystal in its
crystal socket.
( ) Install the two small knobs on the CAL
RESET and ANT TRIM control shafts.
( ) Install the remaining medium knobs on the
remaining shafts. Turn each shaft fully coun-
terclockwise and set the pointer on the knob
at the beginning of rotation.
·
This completes the assembly of your Receiver.
Continue with the Initial Test Procedure.
TEST
Figure 1
( ) Turn the AF GAIN control to the 12 o'clock
position. The pilot lamps and all tube
filaments should glow. Mter several sec-
onds, a rushing noise should be heard in
the speaker.
If
these conditions exist, un-
. plug the line cord and proceed to the
Alignment section of this manual.
If
they
do not, unplug the line cord and refer to the
In Case
Of
Difficulty section.

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