20Ghz Network Analyzer Vector Network Analyzer W Opt Rf Network Analyzer 300 Khz Agilent 8753E Network Analyzer 010 1D5 Agilent Hp 8753D Network Analyzer 300Khz-3Ghz Agilent 8753E Network Analyzer W Options Network Analyzer With Options Network Analyzer 30 Khz Network Analyzer 10 Mhz Agilent 8753D Network Analyzer 8753C Network Analyzer Hp Agilent 8753C 8753E Network Analyzer Network Analyzer W Opt 010 Network Analyzer 2 Hp 8753Es Rf Network Analyzer W Opt Analyzer 30 Khz To 6 Ghz Hp Agilent 8753C Network Analyzer Network Analyzer 30 Khz To 6 Network Analyzer Calibrated Network Analyzer 6Ghz Analyzer 300 Khz To 3 Ghz Agilent Hp 8753Es Network Analyzer 50 Mhz Network Analyzer 300 Khz To 3 30 Khz To 6 Ghz Hp 8753D 6 Ghz Network Analyzer Agilent Pna Pna Network Analyzer Ghz Vector Network Analyzer Microwave Network Analyzer 300Khz 3Ghz 8510C Network Analyzer Hp 8753D Network Analyzer Agilent Hp 8753E Opt 1D5 Agilent 8753Es Scalar Network Analyzer Network Analyzer Test 300 Khz To 3 Ghz Hp 8510C Hp 8510C Network Analyzer Network Analyzer 30Khz S-Parameter Test Set 300 Khz-3 8753D Network Analyzer 30 Khz S-Parameter Network Analyzer Opt 006 Analyzer 6Ghz 3Ghz Network Analyzer Agilent 85046A Rf Vector Network Analyzer Network Analyzer 30 Day Warranty Options 010 Opt 010 3 Ghz Opt Pna Fluke Optiview Network Analyzer 10Mhz Network Spectrum Network Spectrum Analyzer Agilent 8753Es S-Parameter Network Analyzer Agilent N5230a Opt 011 Analyzer 300Khz Network Analyzer 300Khz Agilent E5071b Analyzer Calibrated Vector Signal Analyzer Vector Network Analyzer 40 Option 010 Ena Rf Network Analyzer Ena-L Rf Network Analyzer Fluke Network Optiview 85046A S-Parameter Test Set Agilent 8720Es 3 Ghz Vector Network Analyzer Network Analyzer 300 Khz Ghz Options Ghz W Options Options 006 Network Analyzer System Hp 4195A 3577A Network Analyzer Ghz Scalar Network Analyzer 8753D Network Analyzer 30 Khz Network Analyzer 50Mhz Network Analyzer 300 Khz To 1 Mhz To 40 Ghz Ghz Calibrated 30 Khz To 3 Ghz Hp 3577A Ena Series Network Analyzer Ghz Test Network Analyzer Id 8757D Scalar Network Analyzer Mhz To 20 Ghz Network Spectrum Impedance Analyzer Analyzer 50 Mhz To 20 Ghz Network Analyzer 50 Mhz To 20 N5230a Pna-L Network Analyzer Analyzer W Option Spirent Smartbits 300 Khz To 1 3 Ghz Agilent N5230a Pna-L Network Analyzer Analyzer 300 Khz To 1 3 Hp 8753A Network Analyzer Analyzer 10 Options 1D5 300 Khz Spirent Netcom Agilent E5071c Spirent Netcom Smartbits Fluke Network 006 010 1D5 10 Mhz To 40 Ghz 89441A Vector Signal Analyzer Agilent Hp 8720D Scalar Network Analyzer Opt Hp 8757D Scalar Network Analyzer Performance Analyzer Analyzer Vna 8757A Scalar Network Analyzer Ghz Opt 20Ghz Opt Rf Network Analyzer Ghz W Opt 8753B Network Analyzer Networks Analyzer Agilent Hp 8757D Agilent Omniber Hz To 500 Mhz Hp Agilent 8757A 4195A Network Spectrum Analyzer Options 002 Protocol Analyzer Vector Analyzer Hp 8751A 1300 Mhz Vector Network Analyzer Fluke Etherscope Agilent E5070b Agilent E5071b Ena Hp 8720C 50 Mhz To 40 Ghz Opt 002 Khz To 1 Network Analyzer 5 Hz S-Parameter Vector Network Analyzer 8753C 8753E Hp 8757C Signal Analyzer Hh Rf Vector Pna Microwave Network Analyzer Agilent 8714Es Pna Network Analyzer 300 Khz Cables Analyzer 300 Khz To 6 Ghz Ena-L Rf Network Analyzer 300 Khz Analyzer Mainframe Distributed Network Analyzer Rf Network Analyzer 30 Agilent 8712Et Agilent E5062a Analyzer 9 Khz Microwave Vector Network Analyzer Integrated Network Analyzer Network Analyzer W Opt 1D5 400 Digital Lightwave Vector Network Analyzer 50 Mhz 8712Et Rf Gigabit Traffic Wandel Goltermann Test Warranty Hp Agilent Keysight Transmission Reflection Khz To 8 5 Ghz Hp 8752A Time Domain 110 Ghz 8756A Scalar Network Analyzer Rf Section Internetwork Analyzer Agilent Hp 8722Es 8410C Network Analyzer 8753B Network Analyzer Ghz 45 Mhz Hp 4396A Opt 001 Network Performance Rf Vector Network Analyzer 6Ghz Agilent Performance Analysis
 In 
 
Order by: 
Available to: 
Price: 
 - 
This site contains affiliate links for which I may be compensated
$
99.44
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The secret to making speakers sound great lies with the crossover you use. With the 234xs Crossover you'll get great performance, ultra low-noise, rugged ... morereliability and four decades of knowledge and expertise in building the world's finest processors.
$
150.95
Buy It Now
$5.00 Shipping
Condition: New
Location: China
J3 Bluetooth Audio Decoder Wireless Receiver DAC 9038 Optical Fiber Coaxial USB Hard Decoding Power Amplifier. - 1 x Host. - 1 x USB Audio Cable. Usually ... moreit costs about 30USD-50USD. - 1 x 6.35 to 3.5mm Adapter.
$
47.33
Buy It Now
$3.00 Shipping
Condition: New
Location: China
It is energy-saving and safe to use. - Shockproof performance: 0.5G in the x, y, z direction; frequency of 10-150Hz.
$
65.19
Buy It Now
$5.00 Shipping
Condition: New
Location: China
MV197 is a high-stability OCXO. After 5 minutes of power-on, its accuracy can reach 1x10-8=0.01ppm. After 30 minutes of power-on, its accuracy can reach ... more1x10-9=0.001ppm. Its accuracy has been adjusted to ±1mHz=0.0001ppm, and 53220A for Agilent is used to detect its accuracy.
$
36.45
Buy It Now
$3.00 Shipping
Condition: New
Location: China
BRZHIFI WL05 White Cellphone Wireless Bluetooth5.1 Portable Headphone Amplifier USB HD HiFi Decoder DAC. It adopts PCM5102A decoding and has excellent ... moredynamic details. Excellent driving power and sound quality.
$
55.71
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Third Generation Plus Enhanced Version (2200mAH) Tesla Coil Gun Handheld Magnetic Energy Generator with Power Adapter. - Magnetic field intensity: 1m/70uT. ... more- Net weight: 550g ±50g (included the coil).
$
26.65
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Power: 3680W. Specifications (Wifi Version) - Firmware upgrade: via Wifi. - Wifi networking: Yes. - Accurate power on and power off, with countdown switch ... morefunction, when the socket power is on, countdown is off; When the socket is closed, the countdown is powered on.
$
103.27
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Frequency synthesizer crystal oscillator: TCXO. Frequencies can be independently adjusted for each channel. And each channel can save 5 frequencies to ... morecall arbitrarily. - Output type: square wave.
$
242.49
Buy It Now
$10.00 Shipping
Condition: New
Location: China
1 x Signal generator (RS485 communication port). OHR-B00 Signal Generator is a multifunctional and high-precision portable signal source. The highest ... moreprecision of it can reach 0.01%. - Size of signal generator: 23 x 11cm/9.1 x 4.3".
$
44.93
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The CM-230 is an industrial online conductivity monitor. - Display mode: 3 ½ digit 0.56" LCD (with backlight) displays conductivity. - 1 x Conductivity ... moremonitor. (1) The electrode should be installed in the pipeline where the position is low, the flow rate is stable and it is not easy to generate bubbles;.
$
83.60
Buy It Now
$5.00 Shipping
Condition: New
Location: China
1 x Equalizer. - Dual 15-band, 1/3-octave constant Q frequency bands. Usually it costs about 30USD-50USD. - Front panel bypass switch.
$
100.38
Buy It Now
$5.00 Shipping
Condition: New
Location: China
BRZHIFI L1B Frosted Black Pure Class A 2.0/2.1 Channel HiFi Audio Power Amplifier Bluetooth5.0 Input. - L1B operational amplifier: 5532 x 4. - HiFi preamplifier ... morewith excellent sound quality. - Bluetooth: HD5.0 Bluetooth version.
$
141.23
Buy It Now
$5.00 Shipping
Condition: New
Location: China
2 x 15-band stereo equalizer. - Equalizer bypass switch. - 1 x Audio Equalizer. - Input: 775mV at 50kOhm. - Level switch: +6dB/+12dB. Usually it costs ... moreabout 30USD-50USD. - Output: 775mV at 600Ohm.
$
137.79
Buy It Now
$3.00 Shipping
Condition: New
Location: China
J3 Bluetooth Audio Decoder Wireless Receiver DAC 9038 Optical Fiber Coaxial Power Amplifier without USB Input. - 1 x Host. - 1 x Power Adapter. Usually ... moreit costs about 30USD-50USD.
$
99.44
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The secret to making speakers sound great lies with the crossover you use. With the 234xs Crossover you'll get great performance, ultra low-noise, rugged ... morereliability and four decades of knowledge and expertise in building the world's finest processors.
$
76.49
Buy It Now
Free Shipping
Condition: New
Location: 金东区, China
The small loop antenna (hfdloop) is a small-sized full-band ring magnetic field active receiving antenna with a receiving frequency range of 50kHz to ... more500MHz. There are several sets of switches on the top jumper board and the small ring amp lifier board.
$
88.58
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The board has a single-sided semi-glass plate (22F), pure aluminum shell, super heat dissipation and ultra-low ripple interference. Its performance is ... morecomparable to that of linear power supplies. Usually it costs about 30USD-50USD.
$
39.87
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Musical Tesla Coil Tesla Coil Supporting Phone Bluetooth Connection Lightning & Music Modes (Green). - Dual modes: 1. Lightning will flash to the rhythm ... moreof the music and make a sound by shaking the air.
$
38.18
Buy It Now
$5.00 Shipping
Condition: New
Location: China
DI120 is a dual channel direct box. It converts your HI-Z signal to LO-Z XLR. You do not need a battery or phantom power for this direct box. Alctron ... moreDI120 Silver Two Channel Passive Direct Box DI Box for Electric Guitar Mixer Guitar Speaker.
$
125.79
Buy It Now
$5.00 Shipping
Condition: New
Location: China
JQ AUDIO LB-PRO Multi-function Audio Isolator for Removing Current Acoustic Noise of Audio System. - 1 x Audio Isolator. - Input impedance: 600ohm/10K ... more(AC impedance). - Output impedance: 600ohm/10K (AC impedance).
$
310.00
Buy It Now
$3.00 Shipping
Condition: New
Location: China
1 x Audio Mixer. - Crosstalk between channels (1kHz): channel mute: >90dB; Slider off (reference sign +10): >90dB; AUX transmit port is closed: >83dB. ... more- Input/output Level: Microphone Input: +15dBu; Line input: +30dBu; Stereo input: +30dBu; Mix output: 20dBu; Headphone output (150Ω): 300mW.
$
59.08
Buy It Now
$5.00 Shipping
Condition: New
Location: China
TPA3255 2x300W High Fidelity Digital Power Amplifier Board High Power 2.0 Channel Stereo with Power Adapter. It has class D efficiency and can bring real ... morehigh-end sound quality. This technology enables the device to maintain ultra-low distortion in the entire audio frequency band while displaying high audio quality.
$
81.73
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The decoded video format is H.265/H.264. - H.265/H.265 4K ultra-low latency decoders can output SDI/VGA/HDMI signals. - The decoder supports 4 network ... moreflows, 4-screen display and layout settings. - Low latency: The decoder can be used with an encoder.
$
96.34
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Model: 982. - 1 x Set of Soldering Station. - Ground impedance of soldering tip:
$
47.33
Buy It Now
$5.00 Shipping
Condition: New
Location: China
It is energy-saving and safe to use. - Shockproof performance: 0.5G in the x, y, z direction; frequency of 10-150Hz.
$
44.93
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The CM-230 is an industrial online conductivity monitor. - Display mode: 3 ½ digit 0.56" LCD (with backlight) displays conductivity. - 1 x Conductivity ... moremonitor. (2) Both the flat and vertical installations of the conductivity cell should go deep into the active water body;.
$
146.20
Buy It Now
$5.00 Shipping
Condition: New
Location: China
CA 600Wx2 Professional Power Amplifier Digital Power Amp Two Channel Amplifier for Disco Performance. - Can be used to drive 12" speakers and tap into ... morethe strength of the device. - 1 x Power Amplifier.
$
26.86
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Waveform: pure single sine wave 7.83Hz, no clutter or harmonics. - Schumann wave frequency: standard 7.83Hz sine wave and high frequency stability. Schumann ... morewave 7.83Hz cancels the frequency of negative interference of electromagnetic waves and radio waves, so that the sound space is stable and harmonious and listeners can enjoy music more attentively and pleasantly.
$
22.58
Buy It Now
$5.00 Shipping
Condition: New
Location: China
1 x Spectrum Display. Suitable for ambient lighting, decoration and audio modification. Usually it costs about 30USD-50USD. Smart noise reduction technology. ... moreSize: 110 x 33 x 9mm/4.3 x 1.3 x 0.4"; maximum thickness 17mm/0.7".
$
215.00
Buy It Now
$5.00 Shipping
Condition: New
Location: China
1 x HackRF+H2 Mini +Shell. - Suitable for wireless communication technology research: ZigBee, WiFi, LTE, ADS-B, DVB, and other wireless application systems; ... moresource/channel coding and decoding, modulation and demodulation, sampling, filtering, synchronization, multiplexing, spread spectrum, channel emulation port.
$
68.84
Buy It Now
Free Shipping
Condition: New
Location: China
The small loop antenna (hfdloop) is a small-sized full-band ring magnetic field active receiving antenna with a receiving frequency range of 50kHz to ... more500MHz. There are several sets of switches on the top jumper board and the small ring amp lifier board.
$
60.00
Buy It Now
$10.00 Shipping
Condition: New
Location: China
1 x Set of coax cable adapter. distance of cable map: 300m/984.3ft. Check wiring error in 5E, 6E and coaxial cable, such as open circuit, short circuit, ... morejumper wire and reverse connection. NOYAFA NF-308S is an English version cable finder.
$
102.02
Buy It Now
Free Shipping
Condition: New
Location: Rowland Heights, United States
10M OUTPUT :SINE WAVE,6dBm+-2dB. - Front panel:10MHz:10M sine wave output. - ALM:alarm led,on:frequency deviation accuary>0.1Hz,off:frequency deviation ... moreaccuary
$
21.96
Buy It Now
$5.00 Shipping
Condition: New
Location: China
CD05 New Bluetooth 5.0 Transceiver 2 In 1 Optical Fiber Input and Output Wireless Transmitter and Receiver. - Model: CD05. - Support digital fiber optic ... moreconversion; digital fiber optic input, RCA audio/3.5mm audio output.
$
61.19
Buy It Now
Free Shipping
Condition: New
Location: 金东区, China
The small loop antenna (hfdloop) is a small-sized full-band ring magnetic field active receiving antenna with a receiving frequency range of 50kHz to ... more500MHz. There are several sets of switches on the top jumper board and the small ring amp lifier board.
$
560.00
Buy It Now
$5.00 Shipping
Condition: New
Location: China
1 x Tube Preamplifier Headphone Amp. - Independent headphone jack for headphones to monitor the amplified output, using the MAX 4410 (for Maxim) as output. ... moreIts shielding effect is good, using high-end wrinkle finish spray paint process.
$
149.45
Buy It Now
$10.00 Shipping
Condition: New
Location: China
Happymodel Modula 8 TBS CRSF Nano Receiver 1 - 2S 85mm Brushless Whoop Micro FPV Drone Kit. External TBS CRSF Nano receiver version - CRSF Protocol. - ... more1 x FPV Drone Kit. - Official TBS transmitter compatible.
$
55.61
Buy It Now
$3.00 Shipping
Condition: New
Location: China
CW Interface Box CW Keyer Interface for Automatic & Manual CW Key Exerciser VHF UHF Walkie Talkie. Connect an automatic CW keyer. After about 2 seconds ... moreafter stop sending, it will automatically sleep.
$
37.05
Buy It Now
$5.00 Shipping
Condition: New
Location: China
OCXO-T1 10MHz OCXO Frequency Standard Square Wave Input Switch Board Relay Automatic Switch with SMA Connector. - External input: 10M, -50DBM - +13DBM, ... moresine wave, square wave, triangular wave, sawtooth wave, etc.
$
26.10
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Load impedance range: 1Ω-9999.9Ω. - Capacity accumulation range: 0-99999mAh. - Screen resolution: 160 80. - Model: TC66/TC66C. - You can scan the QR code ... moreof the product to download the Chinese/English manual.
$
30.25
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Diaphragm thickness: 6nm Polyester film. Even if dust is found on the diaphragm, it can not be wiped with anything. - Do not twist any screws on top. ... moreUsually it costs about 30USD-50USD.
$
619.98
Buy It Now
$3.00 Shipping
Condition: New
Location: China
Wavelength: 1625nm. - Interface: APC. - Reflection event blind spot: 2m. - Blind spot of depletion events: 12m. - Optical type: 9/125um SM. - Dynamic ... morerange: 22dB. - Testing fiber type: SM/MM. - Peak value: ≥30mW.
$
31.78
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Diaphragm thickness: 6nm Polyester film. Even if dust is found on the diaphragm, it can not be wiped with anything. - Do not twist any screws on top. ... moreUsually it costs about 30USD-50USD.
$
24.53
Buy It Now
$5.00 Shipping
Condition: New
Location: China
1 x Equalizer. - The headphone amp adopts two NE5532 47-type headphone driver circuit, which can drive 16-600ohm headphones. - 1 x USB DC cable. - There ... moreare seven frequency bands, including 60HZ, 150HZ, 400HZ, 1KHZ, 3KHZ, 6.5KHZ and 15KHZ.
$
40.72
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Musical Tesla Coil Artificial Lightning PLUS Version Support Bluetooth Connection Adjustable Discharging. - The Tesla coil is not a sound system. The ... moresound is generated by lightning. If you use ordinary music, there will be noise, and the effect is not good.
$
9.30
Buy It Now
$5.00 Shipping
Condition: New
Location: China
The RF and LO inputs can operate up to 500MHz. A single resistor is connected between pins OUT and FB to set the gain. The amplifier's low DC offset characteristics ... moreallow it to be used in DC-coupled applications such as DC-baseband conversion and quadrature amplitude demodulation.
$
95.93
Buy It Now
$3.00 Shipping
Condition: New
Location: China
1 x Crossover. TRS input and output. All outputs have phase reversal switches. Choose from stereo subwoofer output or mono subwoofer synthesized by adding ... moreleft and right channels. Both channels have x10 range selectors, and both channels have 40Hz high-pass filters (baseband cut).
$
19.86
Buy It Now
$5.00 Shipping
Condition: New
Location: China
It can be used in cars and also works with computers, TVs, older version speakers, etc. - Bluetooth 5.1 audio adapter. - Product model: A4. - Bluetooth ... morereceiver mode. - Bluetooth transmitter mode. - Bluetooth version: V5.1.
$
38.68
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Musical Tesla Coil Artificial Lightning PLUS Version Support Bluetooth Connection Adjustable Discharging. - Discharging frequency: 5 ~ 50Hz±10 (lightning ... moremode). - The Tesla coil is not a sound system.
$
28.33
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Fully compatible with ROS1 and ROS2 systems, providing SDKs for two systems, and providing relevant technical support. - The laser ranging module based ... moreon the TOF principle has higher stability and better light resistance.
$
69.90
Buy It Now
$5.00 Shipping
Condition: New
Location: China
This is a multi-functional VFD spectrum display with high-precision clock display, Bluetooth 5.0 receiver, supporting 3-channel audio source (2-channel ... moreAUX and 1-channel Bluetooth 5.0) switch function.
$
24.53
Buy It Now
$5.00 Shipping
Condition: New
Location: China
EQ-7 Headphone Amp 7 Band Equalizer Amplifier Headphone Amplifier + USB DC Cable for PC Cellphone. - 1 x Equalizer. - The headphone amp adopts two NE5532 ... more47-type headphone driver circuit, which can drive 16-600ohm headphones.
$
146.30
Buy It Now
$3.00 Shipping
Condition: New
Location: China
38Q2M is a DAC based on ES9038Q2M, with HDMI I2S interface. - Its built-in high-frequency low-phase noise OCXO reshapes the input data.Generally speaking, ... morefor CCHD950/575 femtosecond crystal oscillator, 10HZ phase noise performance is about -90dbc/Hz.
$
58.70
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Durable, and great sounding handheld condenser mic. - 1 x Microphone. - Built-in pop filter reduces undesirable wind and breath sounds. - 1 x Storage ... moreBag. - 1 x Phone Clip. Usually it costs about 30USD-50USD.
$
41.40
Buy It Now
$5.00 Shipping
Condition: New
Location: China
2.0 Dual Channel 220V Bluetooth Amplifier Bass Power Amplifier Board with High Fidelity Timbre 200W. - Power amplifier type: HIFI Power Amplifier. - 1 ... morex Board. - Rated power: 4ohm 300W. Usually it costs about 30USD-50USD.
$
215.91
Buy It Now
$5.00 Shipping
Condition: New
Location: China
With a USB interface and 32 kinds of reverb effects for Lexicon. - 1 x Audio Mixer. - Input/output level: microphone input, +15dBu; line input, +30dBu; ... morestereo input, +30dBu; mix output, 20dBu; headphone output (150Ω), 300mW.
$
213.35
Buy It Now
$5.00 Shipping
Condition: New
Location: China
Product model: NJ200A. - Working frequency: 0Hz ~ 200KHz. - Test frequency range is wide. Frequency range: 0 ~ 200KHz. See the pictures below for details. ... more- The NJ series impedance tester adopts a high-performance processor and ultra-low power consumption design.
$
415.00
Buy It Now
$5.00 Shipping
Condition: New
Location: China
OCT outputs positive, negative, static cumulative pulse signal and frequency signal (1~9999HZ). - Flow rate range: 0 ~ ±32m/S. - RS232 standard data communication ... moreinterface, used for exporting recorded data, online networking detection, etc.
$
120.64
Buy It Now
Free Shipping
Condition: New
Location: China
Power: 100W. - Number of channels: 2 (channel 1 = release; channel 2 = release in 1-3 seconds). We are committed to resolve all issues in a friendly and ... moresatisfactory manner. - 1 x Power cable. - Model: TP-D10.
$
136.81
Buy It Now
$4.00 Shipping
Condition: New
Location: China
This blazingly fast USB 2.0 studio in a box will have you recording your next masterpiece in minutes with all the connectivity for microphones, guitars, ... morebass and keyboards. On the rear panel of the UMC202HD, you'll find the USB 2.0 port for simple and easy connection to your computer, along with ¼" TRS Output jacks and a +48 V switch for providing phantom power to your condenser mics.
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
 In