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Oldfield Amplifiers

User Guide

Operation

Front Controls

Reference the front panel viewing left to right

Channel 1 Lo Input / Hi Input - 

Instrument inputs for channel 1. The Lo

 

input has less gain than 

the Hi input.

Channel 2 Lo Input / Hi Input - 

Instrument inputs for channel 2. The Lo

 

input has less gain than 

the Hi input.

(NOTE - 

Channel 2 is brighter than channel 1)

Channel 1 Volume - 

Volume control for instruments plugged into the

 

channel 1 input. Rotating the 

control clockwise will make the channel 1 volume louder and increase overall gain and harmonics.

Channel 2 Volume - 

Volume control for instruments plugged into the

 

channel 2 input. Rotating the 

control clockwise will make the channel 2 volume louder and increase overall gain and harmonics.

Tone - 

Rotating the control clockwise will increase the high end frequencies

 

output by the amplifier. 

This control affects channel 1 and channel 2. 

Indicator Light - 

Lit when the mains switch is on.

Standby - 

Move to the up position for play and down to put the amplifier in

 

standby mode. The 

standby switch should only be moved to the play position after the Mains switch has been in the on 

position for at least one minute to give the tubes time to arm up.

Mains - 

Move to the up position for play and down to shut the amplifier

 

completely off.

Summary of Contents for 5918

Page 1: ...Oldfield Amplifiers User Guide Model 5918...

Page 2: ...roduce heat This product may be equipped with a polarized plug one blade wider than the other or a three prong grounded plug This is a safety feature If you are unable to insert the plug into the outl...

Page 3: ...h vacuum tubes until they have sufficiently cooled Oldfield amplifiers are capable of producing very high sound pressure levels Use care when setting and adjusting volume levels during use to protect...

Page 4: ...e and hand wired using the best quality components available for guitar amplification It is built to last a lifetime and give the owner countless hours of enjoyment whether on stage in the studio or i...

Page 5: ...d harmonics Channel 2 Volume Volume control for instruments plugged into the channel 2 input Rotating the control clockwise will make the channel 2 volume louder and increase overall gain and harmonic...

Page 6: ...efore changing the position of this switch Power Level The power level control is a variable voltage control for the amplifier At 100 the amplifier will produce the maximum output and be the loudest T...

Page 7: ...comes shipped with a 5V4 tube rectifier Power Your amplifier uses 2 6V6 power tubes When replacing power tubes use only a matched pair from the same manufacturer Your amp does not need to be re biase...

Page 8: ...If you are unfamiliar with replacing tubes this should be done by a qualified service technician For a little higher gain try replacing the preamp tubee with a 12AX7 s To blend the two channels run a...

Page 9: ...arge Power Transformer Output Transformer Reverb Transformer And Choke These items are guaranteed for ten years after date of purchase against manufacturer s defects If a failure occurs due a defect i...

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