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Caution !

 In order to engage the footswitch properly, the switches on the front panel must be in the position 

MIDDLE OFF and in position NORMAL pertaining to WARM. 
 
 
 
 

Troubleshooting procedures.  

 

!!! When replacing fuses the power cord MUST NOT be connected to a power wall socket !!! 

In case of amp malfunction try the following steps: 
1. The LED in the POWER switch does not come on. A) power cord is not plugged in power wall socket. 
                                                                                   B) there is no power in the wall socket 
 

                                                                             C) the  MAINS fuse is blown. 

2. the POWER switch lights up but there is no sound. A) check if the speaker box is connected to the 
                                                                                        amp 
                                                               B) turn the MASTER JUICE and GAIN to the position 3 
                                                               C) turn all frequency pods to at least position 3 
3. hum can be heard but no sound.  A) check if your guitar is connected to the amp and the volume knob  
                                                            on the guitar is at least half way up. 
                                                        B) disconnect all effect pedals  
                                                        C) check the guitar cord or use a new one 
 

If your amplifier still does not function, please see your authorized George Dennis technician.

 

 
 

GEORGE DENNIS Bassic Tube 120 a 200 SPECIFIKACE 

  
Type:                                                BASSIC TUBE 120               BASSIC TUBE 200 
Power output RMS:                                  120 W                                 200 W 
Power Requirements:                    115/230V AC, 50/60Hz         115/230V AC, 50/60Hz 
                                                                  600W                                    600W 
Effects Send/Return Impedance:       100 ? / 1 M?                       100 ? / 1  M?  
D.I. OUT:             Max. 1,5 V RMS, 1 kHz, 600 Ohm – for both units (depending on the input signal) 
Tubes:                                            3x ECC83, 4x E34L              3x ECC83, 4x KT88 
Fuse Mains:                                      T5A/250V pro 100-120V       T,5,5A/250V pro 100-120V 
                                                         version, T2,8A/250V pro            version, T2,8A/250V pro  
                                                         230-240V version.                   230-240V version. 
Fuse H.T.:                                                 T 1,5 A                                T 1,5 A 
Foot switch:                         2 Button switch Controls, MIDDLE SECTION OFF/ON, WARM OFF/ON 
Dimensions:                         Height:      26 cm                                   26 cm 
                                             Width:      28 cm                                   28 cm   
                                             Depth:      57 cm                                    57 cm 
                                           Weight:      30 kg                                     31 kg 
 
 
 

ELECTRICAL CONNECTIONS AND SUPPLY 

 

WARNING:

 This appliance must be earthed. Please check that the supply voltage details given on the rating 

label ( located on the rear panel ) are in accordance with your electricity supply. 

FITTED PLUG:

 This appliance is supplied with a fitted plug. If the socket outlets in the home are not 

suitable for the plug supplied with this appliance ( or the plug becomes damaged and requires replacement 
), it should be cut off and an appropriate three-pin plug fitted as detailed later this in section. 

IMPORTANT

: A moulded plug severed from the mains lead must be destroyed immediately. Such a plug 

with a bared flexible cord is hazardous if a live socket outlet. 

FUSE

: If the fuse of the moulded on plug is to he replaced, remove the coloured fuse cover on the underside 

of the plug, and use a suitably certified 5A fuse approved by ASTA to B51362, i.e.-, the fuse carries the 
ASTA mark. The fuse cover must always be replaced. Never use the plug cover omitted. Replacement fuse 
covers are available from your local authorised service agent. 

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