Features; Precautions - Analog Metric M7C SRPP User Manual

FEATURES

Two 12AX7 and two 12AU7 vacuum tubes.
Voltage gain: 20dB
Bandwidth: 500KHz
Frequency Flatness: 20-20KHz (+/-0.1dB)
S/N Ratio: >91dB
THD: 0.02% @Vin = -1dBm and 1KHz
0.05% @Vin= -10dBm and 1KHz
Input impedance 470KΩ
Output impedance 3KΩ
Two single-ended and two single-ended outputs.
Symmetric layout design and signal paths with minimum parasitic.
Dedicated ground and power rails layout design.
Two large reservoir decoupling capacitors for power rails.
Power requirements: one 260V (50mA) DC, and one 12.6V (1A) DC.
PCB dimension: 19.3mm (W) x 15.6mm (L)
PCB thickness: 2.4mm, double layer, 2oz copper.

PRECAUTIONS

Do not use any body parts to touch the metal parts of the kit after power up or power
off, since the high voltage capacitors may not fully discharge. It may cause serious
electric shock.
Use a power transformer with fuse (1A) socket to limit the supply current in case of
short circuit or incorrect assembly.
Double check the assembled components with the schematics.
Do not attempt the measure the voltage by multi-meter with hand after power up. The
probes of the multi-meter should be mounted by some stands to the points of the
measurement before switching on the power supply.
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