Vista 1 User Manual

1.  Read the User’s Manual and refer to it frequently during your experimenting. 
2.  Retain the User’s Manual for future reference. 
3.  All warnings should be strictly adhered to. 
4.  Follow instructions to the last detail. 
5.  This product should be operated using only the type of power source indicated in this 

manual. 

6.  Always use an electrical outlet that is grounded. If you do not know whether the outlet is 

grounded, consult your electrician or local power company. 

7.  For continued protection against fire hazard, replace fuses with the same type and rating of 

the fuses specified. When changing fuses, completely remove power from the circuit. 

8.  Power supply cords and all connecting cables or wires should be routed so that they are 

not likely to be walked on or pinched. Pay particular attention to cords and cables at plugs, 
receptacles and terminal blocks. Always use wires with adequate ratings and safety 
certifications (CE, UL, etc.) 

9.  During operation the tubes get very hot. Do not touch the tubes since this may result in a 

severe burn. Allow several minutes after removing power for tubes to cool down before 
touching them. 

10. Turn off the unit as soon as you stop actively using it. Unplug the power supply from the 

wall during a lightning storm or when the product is to be left unattended and unused for 
longer periods of time. 

11.  Do not use this product near water or in wet areas. Damp basements should be avoided. 
12. The product should be placed away from heat sources such as radiators, heaters, stoves 

or other appliances that produce heat. Also avoid putting the unit in the direct rays of the 
Sun. 

13. Proper ventilation is crucial for safe and reliable operation. Never place anything on top of 

your amplifier that could obstruct airflow and cause the parts to overheat and damage the 
amplifier. Do not place your amplifier in a rack or bookcase unless proper ventilation is 
provided. 

14. Care should be taken to prevent objects from falling and liquids from spilling into the unit. 

Do not subject the unit to excessive smoke, dust, vibration or shock.  

15. During experimenting, make sure that all jumpers are properly seated in the correct 

position, that there are no foreign objects or solder bridges. 

16. Always wear protective glasses and exercise caution when powering unit after any change 

is made. If possible, gradually rise input voltage and look for any abnormalities – smell or 
smoke, tubes overheating (excessive glow), etc. 

 

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