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EXTERNAL BATTERY CONNECTION
If you would like to connect your keyer to an external battery, a plug is supplied for this purpose.
Wire the plug as shown in Pictorial 6-6. You can wire the plug without concern for polarity, due to
the diode bridge in the keyer. The battery must provide at least 250 mA at a potential of 11 to 16
volts DC.
PICTORIAL 6-6
BATTERY REPLACEMENT
When it becomes necessary to replace the batteries in your keyer, you may select one from the fol-
lowing list. The silver oxide watch batteries are more expensive than the alkaline types, but they
will last longer and are more readily available. NOTE: Leave the keyer plugged in when you are not
using it to prolong the battery life.
Eveready A76*
S76**
357**
Mallory (Duracell) D357**
or 10L14**
Ray-O-Vac RW42**
Varta V13GA*
BULOVA 228**
TIMEX J**
MAXELL G13
or SR44W**
SEARS 8006**
SEIKO SB-B9**
RENATA 7
Other names are: G13, LR44, A76, SR44W,
GP76A, 357 for Alkaline batteries.
* Alkaline
** Silver Oxide
RANDOM CODE PRACTICE
On the following pages, ten of the 6400 random code sequences available in the practice mode are
listed. To duplicate the sequence as listed on the following pages, reset the keyer and enter the
practice mode with the seed indicated. (As noted in the section "Code Practice", each time you
turn on the keyer on without being reset, each of these sequences will be modified.
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