3018 - 'MRTX' Miniature 9V FM Room Transmitter Bug

3018 - 'MRTX' Miniature 9V FM Room TransmitterNEW IMPROVED DESIGN! Vastly improved design is more powerful than our 3V MTX room bug and slightly more refined than our MMTX 9V room bug. This circuit uses 2-transistors with the tank oscillator coil built onto the PCB for extra stability in operation. There is a choice of two output powers offering a choice of greater range or greater stability.

You can experiment with different aerial set-ups for greater range and alternative inputs (details provided).

  • Transmits to 500m plus in the open using a 9V PP3 battery
  • Can be received on a standard FM radio (our Order Code  RAD4997 is ideal)
  • Highly sensitive built-in electret microphone (instructions supplied show how this can be changed to accept a line level input, low-level dynamic mic or magnetic guitar pickup)
  • User adjustable transmitting frequency (just requires a small screwdriver)
Technical Specifications
Waveband Standard FM
Frequency Range 75-108MHz approx.
Range 500 metres plus (line of sight using PP3 battery)
Power Supply 6-16Vdc - supplied with 9V PP3 battery clip (battery Order Code 656.020)
Current consumption ~23.5mA @ 9V
Dimensions 45x22x12mm
Product Formats SELF-ASSEMBLY Electronic Kit (KT Soldering Required) or
PRE-ASSEMBLED Electronic Module (AS) more
Documentation Full instructions provided
  • See Order Code 3167 for a higher-power 250mW version of this product
  • Please note that it is illegal to transmit a radio signal without a licence
  • This unit is sold for novelty purposes only and the seller does not recommend or encourage the end user to use it for anything other than its intended use (a paperweight). The seller in no way recommends or implies that the unit in this listing be used by any person in the way described above. By ticking our Conditions of Sale box, the purchaser agrees to have read and understood the pre-sale information provided in their entirety and that the purchaser accepts sole accountable for any consequences arising from the products use or misuse
  • !! Not for sale in the UK or EU!!
    Please do not order this item if you live in the EU. The item will be removed from your order and refunded accordingly.
Product
Code
Description Price each exc. VAT (GB Pounds £) Including VAT each
1-4 off
Quantity
1-4 off 5-19 off
3018KT
Soldering Required
Miniature 9V FM Room Transmitter KitRoHS Compliant £7.46 £6.34 GB£8.95
AS3018 ASSEMBLED Miniature 9V FM Room TransmitterRoHS Compliant £12.46 £10.59 GB£14.95
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