A generation of pre-class Elvis legend CAT-SL1-1 Pre-class line of modern classic vacuum tube pre-class
CAT SL-1 attractive place is to keep the vacuum tube glamorous and rich sound quality, while providing crystal-specific control and low frequency. American stereo magazine leader STEREOPHILE, CAT SL-1 in 1993 named the annual situation equipment, can imagine how its power.
CAT can be said to be the standard tuning secret school, using three different types of vacuum tubes throughout the line, for a total of four dual transistors. The first use of 12AU7, whichever is the high-bandwidth, sweet tone toward. The second level is even more brilliant, the use of high-power amplifier tube 12AX7 do SRPP, creating a very wide line of the entire line and invincible dynamic. The final use of 6DJ8 output, in order to obtain very low output impedance and driving force, fully compatible with a variety of post-class, there is no problem with.
High-voltage low-voltage diode gallstones used in a wide range of regulated voltage regulator power amplifier
Filament with ultra-low voltage 6.3V DC filament voltage regulator circuit
Transformer requirements; 280V-0-280V 60MA
0-6.3V 1.5A
0-6.3V 2.5A
Board Specifications: 200MM * 180MM
Tube: 6Z4 * 1, 6P6P * 1, 12AU7 * 1, 6N4 * 2, 6N11 * 1