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32. LINE OUT LEVEL CONTROL: Controls the output capacity of
the Line Out Level.
33. LINE OUT JACK: Connects the AT-212 to an external line-
level device such as a mixing board.
34. FOOTSWITCH - EFFECTS/REVERB: Connects footswitch to
turn the reverb on/off and the effects loop on/off.
35. FOOTSWITCH – GAIN AND CHANNEL SWITCH: Switch
between Gain 1 and Gain 2 in the overdrive Channel. Also
switches between clean and overdrive channel.
36. EFFECTS – RETURN JACK: Connects the AT-212 to the
output of an effects unit.
37. EFFECTS – RETURN LEVEL: Controls the input capacity of
the returning signal from an effects unit.
38. EFFECTS – SEND LEVEL: Controls the sending level output
to an effects unit.
39. EFFECTS - SEND JACK: Connects to the AT-212 to the input
off an effects unit.
frequencies as desired in the clean channel. Turning the middle
control clockwise will increase the amount of warmth in your
tone. Counterclockwise settings create a more pristine, acoustic
kind of sound.
16. CLEAN CHANNEL - TREBLE: Adjusts the amount of high
frequency boost or cut as desired in the clean channel. Treble
adds brightness to your tone. Turning this control clockwise will
add brilliance to your sound. Turning the control counter-
clockwise softens the tone.
17. CLEAN CHANNEL - BRIGHT: Adds high end sparkle.
18. CLEAN CHANNEL – VOLUME: Controls the overall signal level
of the clean channel.Adjusting the volume control enables you to
produce sparkling clean sounds to crunchy, dirty blues. Turned
all the way to the left you will experience clean sounds. A setting
all the way to the right will produce moderate levels of distortion.
19. MASTER VOLUME:
Controls the overall signal level of the
AT-212. To increase the overall signal and/or volume, rotate
the control clockwise. The Master volume control allows you to
preset the output levels of both the Clean and Overdrive Channels.
20. MASTER LOW RESONANCE: Controls the overall resonance
of the amplifier. Turning the control clockwise adds rich low end.
21. MASTER REVERB CONTROL: Adjusts the amount of reverb
produced by the amplifier. To increase the amount of reverb turn
clockwise.
22. PILOT JEWEL. Power on indicator.
23. STANDBY ON/OFF SWITCH: Allows the AT-212 to remain
turned ON for limited periods of inactivity without the risk of
damaging / over-heating the amplifier tubes. When the Standby
switch is in the STANDBY position the AT-212 is in a non-
operational setting. When in Standby the Sovtek tubes remain
hot and ready for use. This bypasses the time required for the
tubes to warm up before use. When the Standby switch is in the
ON position the AT-212 is operational and should not be left
inactive. DO NOT turn on the AT-212 or have the Standby
switch set to ON without it connected to a loudspeaker.
24. POWER ON/OFF SWITCH: Turns the AT-212 on and off.
Do not attempt to service the AT-212 by yourself.
Refer all servicing to a B-52 Authorized dealer.
Service is required when the AT-212 has had liquid
spilled on it or has been damaged in any way, the
amplifier has been exposed to rain or moisture,
does not operate normally or has been dropped.
AMPLIFIER PRECAUTIONS
AT-212: CONTROLS AND FEATURES