[apt_one]

MXR Linear preamplifier model 139-excellent low profile preamp.

https://www.gammaelectronics.xyz/audio_11-1981_mxr.html

Payment via paypal friends and family option only, buyer pays ground shipping cost.
apt_one@yahoo.com

Manufacturer's Specifications:

Rated Output Voltage: 1 .0 V rms.

Maximum Output Voltage: 7.0 V rms.

Gain: Phono, 40 dB at 1 kHz; high level, 0 or 20 dB, selectable.

Frequency Response: Phono, RIAA ±0.25 dB; high level, 20 Hz to 20 kHz ± 0.25 dB, 10 Hz to 100 kHz-3 dB.

S/N Ratio: Phono, 88 dBV; AUX or line, 90 dBV; minimum volume, 95 dBV.

THD or IM: 0.005 percent, rated to maximum output, line or phono.

Phono Input Impedance: 47 kilohms and 200 pF.

Phono Input Sensitivity: 5 mV rms.

Phono Input Overload: 120 mV, 1 kHz, peak.

High Level Input Sensitivity: 50 mV rms.

Low Filter Response: -3 dB at 19 Hz, -29 dB at 5 Hz; phono only.

Crosstalk: High level to phono, 80 dBV.

Headphone Power: 150 mW.

Slew Rate: 7 V/µS.

Output Impedance: 600 ohms.

Dimensions: 19 in. (48.3 cm) W x 6 1/2 in. (16.5 cm) D x 1 3/4 in. (4.4 cm) H.