Heathkit SB-401 - Page 47

Page 122
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Internal Controls, . . 2 6 « © eecccevere
HEATHEKIT
35 db below rated output,
55 db down from rated output at 1000 Hz and
higher,
30 db down from rated P.E.P. output,
At least 40 db below rated carrier,
350 to 2450 Hz +3 db,
10 db nominal at 0,2 ma final grid current,
High impedance or phone patch,
Internally switched to speaker with transmitter
in CW mode and key depressed, Approximately
1000 Hz tone,
Break-in CW; provided by operating VOX from
a keyed tone, using grid-block keying,
Main (LMO) Tuning,
Function switch,
Band switch,
Mode switch.
Driver tuning,
Final tuning,
Final loading,
Mic and CW Level control,
FREQ CONTROL switch.
Meter switch,
Bias Adjust control,
VOX Gain control,
VOX Delay control,
Anti-VOX control,
ALC Adjust control,
Carrier Null control and capacitor,
Sideband Amplitude Balance control,
Relative Power Adjust control,
Sidetone Level control,