Ham radio HK-5A Manual

GENERAL
The HK-5A Keyer is a deluxe iambic keyer capable of keying
grid block, cathode or solid state transmitters.
dot and dash memory
tone oscillator
trols. The unit can be powered
an external 6 volt power supply.
unit can De used for manual keying of the transmitter
practice oscillator
BA~TERY INSTALLATION
Remove the top cover from the unit by removing two screws
located on the rear lip of the cover.
the battery holder.
polarity. Reinstall
CONNECTI~G THE KEY
To fully utilize the features of the HK~5A, a squeeze-type
paddle such as t.heHi;l,m-Key H K-l should be used.
connected withn~8e~):,'CKT
connects t.qjtb%l~~~ contact,
sleeve to the-common
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.:mo ..--'....
CQi\JNECIl
c
A'sni-e-'~H98a¥tWdsl!!f?~'
trans~~~ee¥~wo~
cable a~§ITgj§9.~9§qtorb~@Gmate with the transmitter
other end.
For transmitters
Phono Connector
cathode or SP.1i<;1d:,ltSl-:t~ckeyed
jack on the HK..,.SA. _
The grid block circuit is capable of keying a maximum negative
300 volts to ground at 10 ma. of current.
maximum positive
Consult your transmitter
OPERATION
The four position
the following manner:
OFF - removes both internal or external power from the keyer.
though key-up current is nominal, battery
turning the HK-5A off during periods of non-use.
ON - In the on position,
sidetone oscillator
has been provided
built in sidetone.
TONE - The tone position
volume and pitch of the sidetone oscillator
panel via the volume and tone controls.
SPEED CONTROL - The speed control adjusts the speed of the HK-5A over a
range of approximately
WEIGHT CONTROL - The weight control allows the lengthening
and dashes for more distinctive
too far will result in constant keying.
and insertion
has front panel adjus-table tone and volume con-
for learning the Morse code.
Install 4 C cells in the holder observing
top cover.
Phone Plug provided.
1/4
the ring to the dash contact, and the
contact.
..NSM'!'TER ..".' •. '
a'-b~f.'-f~bri-catearO~-cofl.:hecY-
~hArr~Bg~o Plug should be installed on one end of the
employing
to the grid jack on the back of the HK-5A.
transmi tters, connect to the direct
voltage of 300 volts to ground at 200 ma. maximum.
operation
function switch on the front panel operates
the HK-5A is operational.
is not functional
for those who desire to use a transmitter
activates the built in sidetone circuit.
50 WPM.
8 -
circuits. The built
from internal batteries
By using a straight key, the
Slide the lid back to expose
grid block keying, connect the RCA
The direct output keys a
manual for keying requirements.
life will be extended by
in this position.
is adjustable
keying. Advancing
The keyer has
side-
in
or from
or as a code
proper
keyer
The key should be
The tip of the plug
the"-HR-5A~6
key jack on the
For
Even
The internal
This position
with a
from the front
of the dots
the weight control
-the
in
The