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Circuitwerkes MicTel
Amplified Mic/Line to Telephone Interface with Onboard Limiting


Our Price: $336.00
List Price: $345.00
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Circuitwerkes MicTel
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Circuitwerkes' MicTel combines a high quality single channel Mic amp with a headphone amp and telephone interface in a compact package that's ideal for locker room reports and other extended remote broadcasts. It replaces the handset of the telephone to provide high-quality audio for feeding and receiving information.

For non-telephone work, its balanced, studio quality inputs and outputs make it an excellent audio interface device for all kinds of remote or in-studio work. The aux. audio channel drives the headphones giving you a portable field amplifier with an IFB feed for your headphones in one compact box.

The MicTel includes a line-level, balanced input for mixing in tape players, etc.
Along with high quality audio, the MicTel features audio limiters in both the send and receive channel. These limiters are user-defeatable and begin working at about +3dBm of output. The limiter works by automatically reducing the gain of the device during high-output, peak audio thereby preventing clipping, output distortion or overdriving the telephone line.

Its audio & battery specifications will provide long life and "Broadcast Quality" audio production.

The MicTel is a great addition to your remote setup. Whether you're doing news / sports actualities, general remote broadcasting, or you just need a great little mini-audio work station for your studio, you'll appreciate the versatile features & performance of the MicTel.


  • Outputs for telephone handset, cellular phone or balanced line level at up to +10dBm.
  • Audio inputs from phone handset, cell phone or balanced line.
  • Program bus is fed by balanced mic preamp and an auxiliary balanced line input.
  • Individual gain controls for send, receive and headphones levels.
  • High quality, user-switchable, internal limiter prevents clipping.
  • Has both 1/4" and 3.5mm stereo headphone/cue jacks.
  • Headphone amp has a variable level balanced input and adjustable sidetone so you can monitor an IFB or cue return source AND/OR your program audio.
  • Rugged design & Long life potentiometers for extra years of trouble-free broadcasts.
  • Industry standard XLR mic and program output connectors.
  • External power input with silent, auto-switching battery backup & low battery indicator
  • Uses two 9V batteries or the included, CircuitWerkes adaptor.


  • Physical Dimensions: 6" L x 2-1/8" H x 5-1/16" W
  • Weight: approx. 1.5 lbs without batteries.
  • Power Supply Requirements:
      -  12-16VDC or AC @ 200mAminimum. Polarity insensitive
      -  Two (2) 9V Alkaline Batteries, Battery life nominally 20-35 hours, depending on usage.
  • Indicators: LED Low Battery Warning. Gives 15 to 45 minute battery life warning.
  • Connectors:
      -  Microphone XLR - F (BalancedInput)
      -  PGM/Mic Out XLR - M (Balanced Linelevel)
      -  PGM In ¼' TRS (Balanced Line level)
     -  Headset ¼" and 1/8" Unbalanced
      -  Aux I/O In& Out ¼" TRS (Balanced Line level)
      -  HandsetRJ-9
      -  Cellular 2.5" mini TRS (tip = send, ring =rcv)
      -  Power jack One standard 5.5mm barrel with 2.1mm id
  • Audio Amplifier:
      -  Input Level Impedance
     -  Mic -60dBm >300 Ohms balanced
      -  PGM -10dBm >10k Ohms balanced
      -  Aux I/O In -10 dBm >10k Ohms balanced
  • Output Level Impedance
      -  Headset +4 dBm 8 Ohmsmin
      -  Mic/PGM Out +10 dBm (50Hz - 14kHz) 600Ohms
      -  Aux I/O Out +10 dBm (50Hz - 15kHz) 600Ohms
      -  Handset Transmit -3 dBm Max (300Hz - 3kHz) 600Ohms
      -  Distortion Less than .1% (no limiting)
  • Limiter:
      -  Threshold Level = +3 to +5dBm at MicTel'sOutput
      -  Slope = .2dB of output per 1dB rise atinput
      -  Maximum compression = 20dB
      -  Maximum distortion at 10dB of limiting = less than 1%
  • Power:
      -  Two 9Volt Alkaline batteries or 12-16Vdcexternal power w/auto-switched backup
      -  Nominal currentconsumption
      -  55mA at full output
     -  22mA at idle current

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