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VICTORY RK50H  

All Valve 50 Watt Guitar Amplifier 

 
 

 

 
 

User Guide 

 

Summary of Contents for VICTORY RK50H

Page 1: ...1 P a g e VICTORY RK50H All Valve 50 Watt Guitar Amplifier User Guide ...

Page 2: ...to qualified service personnel Damage Requiring Service Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions a When the power supply cord or plug is damaged b If liquid has been spilled or objects have fallen into the product c If the product has been exposed to rain or water d If the product does not operate normally by followi...

Page 3: ...f Volumes Gains to be achieved This can be very powerful for tone shaping Tremolo Speed This controls the speed of the Tremolo effect Please experiment in conjunction with the Depth control to find the most pleasing settings for your desired sound Tremolo Depth This controls the Amplitude Modulation of the Tremolo effect turning the volume of the output stage up and down continuously to varying de...

Page 4: ...lects the correct mains voltage for your territory Please refer to a qualified technician before even thinking about moving this switch If you do find yourself in foreign climes where the mains voltage is different to home and the water tastes funny it will be necessary to switch this selector The mains fuse must always be changed at the same time Failure to do this will result in either the mains...

Page 5: ...neer to assess the problem Speaker Outputs PLEASE NOTE The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock Terminals labelled as Speaker Outputs must be connected to a speaker cabinet of the des...

Page 6: ... at various settings VERY IMPORTANT WARNINGS In certain countries specifically Nordic countries is it totally forbidden to open up any electronic equipment or to work on them at all unless you are a fully qualified and approved technician Please check the laws in your country and do not attempt to change valves tubes or re bias the amplifier if the law forbids this In this case please take you re ...

Page 7: ...connected to a speaker cabinet or dummy load resistor Turn all controls to zero and remove the guitar input as any signals may interfere with the Bias settings Switch to PREHEAT on the front and ON using the mains switch on the rear and then after 60 seconds switch to HIGH Now put the black meter probe ve into the Black centre GND Bias socket and the red meter probe ve into the V5 Bias socket Usin...

Page 8: ...h x 185 d Unboxed 545 w x 310 h x 300 d Boxed Weight 8 2Kgs Unboxed 10 4Kgs Boxed Output Power The following measurements were taken at 240V mains input into an 8 Ohm load using a 1 KHz Sine Wave with the output waveforms set just before clipping High Power 50 Watts Low Power 9 Watts Valves V1 ECC83 12AX7 V2 ECC83 12AX7 V3 ECC83 12AX7 V4 V5 EL34s or 6L6s The RK50H is fitted as standard from the fa...

Page 9: ... They also have all technical details for your product and have been carefully selected to ensure you get the best possible service for warranty and non warranty work Notes on what to do if your amplifier experiences any strange behavior May 2018 over 5500 amplifiers have now been shipped out of the factory and from 5 years answering service queries the only real issues that come up are valve rela...

Page 10: ...ing to gain noise microphony This is easily achieved if you just do one at a time take it out re tension then re insert and go to the next one You will see that the valve bases have small 2 part metal clips in each hole and these need to be pushed together to make a tight connection on the valve pins Pre amp valves Poweramp Valves ...

Page 11: ...ompromise musical instrument with a great deal of pride and an absolute commitment to tone We encourage you to learn to get to know it by experimenting with all the controls in order to discover its vast array of tonal combinations Thank you for making your tones with us we wish you many years of achieving inspiring sounds to push your playing ever onwards Now we ll shut up you go play yer guitar ...

Page 12: ...12 P a g e Handmade in England Issue 3 30 05 2018 ...

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