Telex WT55 wireless lapel mic & FRM70 Receiver

Hi,

please attempt to factory reset your microphone. Also, some companies only allow certain accessories like a battery to be provided by them or special partner companies. So, please verify with your manufacturer that duracell batteries are allowed to be used within their products.

Thank you.

Telex sells the ST-300 base transmitter to use with the SR-50 receivers and it's microphones. See here: http://wirelessmicrophones.telex.com/wirelessmicrophones/products.nsf/pages/ST-300

Make certain the mic and the receiver are in the same exact frequency band. There are stickers on both products that list the frequency band.

The handheld is in a different frequency band than the receiver. There are stickers on both that saw what frequency range they can tune to.

A wireless mic uses batteries for power. Check the battery terminals and clean them (pencil eraser), also make sure that a new (check voltage with volt meter) battery is installed. Finger grease is one culprit which cannot be seen on the terminals. Batteries also leak and leave traces of "stuff" on the terminals. Any drop in voltage (because of dirt) will make that device stop working.

If it uses a 9 volt battery, check both wires going from the 9 volt connector - one might be broke (not connected). Checking if either of the wires is "loose" (broke) is easy.

Hope this helps.

Here you go. I would use something like this. This has a 1.75" (44mm) diameter. http://www.bhphotovideo.com/c/product/298898-REG/WindTech_MC_4_MC4_Extra_Large_Heavy_Duty_Microphone.html
You can also go here http://www.crossroadsaudio.com/Rentals%20Catalog.pdf scroll down to page 5 and you can use this - $15.00 Telex ELM-22S Black Lapel Mic, Shure TA4F w/ Mic Clip -- That clip is the same diameter as your mic and is made by Telex.

All the AAA batteries whether non-rechargeable alkaline (Duracell, Energizer, Rayovac, Varta, Maxell, Panasonic, Sony, Sanyo, etc) will do. Each of these types of batteries has a voltage of 1.5V
You can also use rechargeable NiCd (Nickel-Cadmium) or NiMH (Nickel-Metal Hydride) 1.2V AAA. However TI Instruments say that under no circumstances should one use rechargeable batteries.

The trivial possible reasons why the the Duracell did not work are:

1. The lot was depleted.--Replace with fresh ones
   
2. The electrical terminals may be broken or dirty or corroded by a previous acid leak.---Clean the terminal even if they appear shiny. The eraser tip of a pencil should be good to rub away any dirt.
   
3. You did not place them correctly: Wrong polarity. This is a very common mistake (I know from my own experience).

Wireless systems can be purchased as either lapel or handheld systems. Talk to the dealer that you are purchasing the wireless from and let them know you want a handheld system.

As long as the battery is in the microphone, the microphone is on and transmitting. Even if your receiver is off. Remove the microphone battery when not in use. Life expectancy of an Alkaline battery is about 4 to 8 hours stage time. Only 1 to 2 hours for heavy duty batteries.

Hi..
The rim is "ground" or the (-) side of the mic.
Find out which wire goes to ground or a (-) on a battery.
Solder that one back to the rim