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Crate V18-112, Owner'S Manual, Page: 10 / 12

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Crate V18-112 Owner'S Manual Download Page 10

V18-112/V18-212 Tube Guitar Amplifier with Reverb

10

System Block Diagram

GUITAR

INPUT

OVERDRIVE

GAIN

REVERB

LEVEL

REVERB

IN

8 OHM

INTERNAL

SPEAKER

LINE

OUT

REVERB

OUT

OVERDRIVE

LEVEL

12AX7A

V1A

12AX7A

V1B

12AX7A

V2A

12AX7A

V2B

PHASE

SPLITTER

EL84

EL84

12AX7A

V3A

12AX7A

V3B

BASS

TREBLE MID

Summary of Contents for V18-112

Page 1: ...V18 112 V18 212 Tube Guitar Amplifier with Reverb Owner s Manual...

Page 2: ...MUST REMAIN ACCESSIBLE TO DISCONNECT THE UNIT IF A FAULT SHOULD ARISE WHILE IN USE THIS UNIT SHOULD BE UNPLUGGED WHEN NOT IN USE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING TO REDUCE THE RISK...

Page 3: ...one controls and an inter nal spring reverb They crank out 18 watts from a pair of EL84 tubes into either one V18 112 or two V18 212 internal speakers Like all Crate products your V18 amplifier is des...

Page 4: ...dB at 150 Hz 7 REVERB Use this to adjust the amount of reverb Fully counter clockwise is dry no reverb Rotate clockwise to increase the amount of reverb 8 LAMP This illuminates when the ampli fier is...

Page 5: ...the signal from the preamplifier stage of the V18 to a mixer or recorder The signal comes after the EQ stage but before the reverb stage 16 SPEAKER 8 OHMS The V18 is shipped with a cable connected fro...

Page 6: ...e amplifiers When tubes are driven into clipping the harmonic overtones can be both sweet and pleasing or intense and penetrating depending on the musician s musical taste and playing technique Over t...

Page 7: ...omponents that are vacuum sealed in a glass envelope or bubble The tube s longevity is based on a number of factors which include how hard and often the amplifier is played vibration from the speakers...

Page 8: ...biasing is imperative Bias is the nega tive voltage which is applied to the power tube s control grid to set the level of idle current We cannot over emphasize the difference in warmth of tone and dyn...

Page 9: ...y day Always have the bias checked after replacing the output tubes unless the amplifier is equipped with selfbiasing circuitry This should be done ONLY at a qualified service center Improper biasing...

Page 10: ...verb 10 System Block Diagram GUITAR INPUT OVERDRIVE GAIN REVERB LEVEL REVERB IN 8 OHM INTERNAL SPEAKER LINE OUT REVERB OUT OVERDRIVE LEVEL 12AX7A V1A 12AX7A V1B 12AX7A V2A 12AX7A V2B PHASE SPLITTER EL...

Page 11: ...bsite www crateamps com and click on Support for service information or call 1 800 898 3211 during business hours 7 am to 5 pm PST Monday Friday If you are outside of the U S contact your local distri...

Page 12: ...Treble 12 dB range 6 kHz Middle 10 dB range 1 kHz Bass 8 dB range 150 Hz Speaker Specs V18 112 1 x 12 50 W 8 ohm 1 75 voice coil diameter 30 oz magnet V18 212 2 x 12 50 W 16 ohm in parallel 1 75 voic...

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