Crucial Audio ECHO-NUGGET Руководство по эксплуатации - Страница 5

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Maintenance

Your Echo-Nugget is designed to be relatively low maintenance and durable. From time to time, it will become

necessary to replace the two (2) 12AX7A vacuum tubes. This is a routine task, and Crucial Audio

recommends that this only be performed by qualified personnel. Dangerous voltages may be present on the

circuit board (even if the unit is unplugged from its power adapter), and the glass vacuum tubes are fragile

and can shatter. Please, refer tube replacement to a qualified and authorized technician. if the unit is

unplugged from its power adapter), and the glass vacuum tubes are fragile and can shatter. Please, refer tube

replacement to a qualified and authorized technician.

Approved Tube List

The following is a list of approved and tested 9-pin Twin Triode Vacuum Tubes:

7025SS RUBY

12AT7CZ TESLA / JJ

12AU7 SELECTED NOS

12AX7A TESLA / JJ

12AX7AC5 RUBY (Preferred)

12AX7EH ELECTRO-HARMONIX

12AX7LP SOVTEK

12AX7WA SOVTEK

12AX7WB SOVTEK

*This list is in alphabetical order, and not necessarily in order of preference

NOTE: Different tube types can be combined to create different gain levels and sonic qualities. Suggested

settings and tube combinations will be available online at

Please, refer all technical support inquiries to Crucial Audio Customer Support. Product information,

Frequently Asked Questions, and other information can be found online at

Contact Information:

Crucial Audio LLC

Selbyville, Delaware 19975

Tel/Fax 1-302-927-0090

Email:

URL:

Product Support & Contact Information

[email protected]

crucialaudio.com