Heathkit SB-401 - VOLTAGE AND RESISTANCE CHART NOTES

) GegreatTuxitT
VOLTAGE AND RESISTANCE CHART NOTES
SWITCH AND MEASUREMENTS CONDITIONS
CONTROL
POSITIONS
FUNCTION
BAND
Full counter-
clockwise dial
marking
* MINIMUM AFTER 5 SECONDS
#** APPROXIMATELY
.
WON AVP ON =
MAY VARY.
CHASSIS GROUND.
FILAMENT.
VARIES WITH SETTING OF LEVEL CONTROL.
VOLTAGE PRESENT ONLY ON LSB.
TUBE IS CUT OFF.
VOLTAGE DEPENDS ON AMPLITUDE OF HETERODYNE MIXER INJECTION.
VARIES WITH CRYSTAL ACTIVITY AND HETERODYNE OSCILLATOR COIL SETTING.
PENTODE SECTION OPERATES ONLY IN TRANSCEIVE.
RELAY NOT CLOSED.
. OPERATES ONLY WITH KEY DOWN IN CW MODE.
. GROUNDED BY THE FUNCTION SWITCH.
. VARIES WITH SETTING OF VOX CONTROL.
VARIES WITH SETTING OF ANTI-VOX CONTROL.
VARIES WITH VOLTAGE IMPRESSED ACROSS DIODE.
GROUNDED BY MODE SWITCH.
VARIES WITH SETTING OF BIAS ADJUST CONTROL.
HETERODYNE OSCILLATCR INPUT FROM RECEIVER IN TRANSCEIVE ONLY.
VOLTAGE IN TRANSCEIVE ONLY.
. VARIES BETWEEN LSB, USB, CW, AND TUNE.
. PROVIDES BIAS VOLTAGE TO UNBALANCE BALANCED MODULATOR.
. TO CHASSIS,
. INFINITY IN USB OR LSB.
APPROXIMATELY 50 K AFTER A FEW SECONDS IN LSB OR USB.
GROUND IN CW AND TUNE.
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