![]() Move the slider back and forth until the frequency of the tone matches your tinnitus tone.In the Wave Type drop down menu, select the tone that most closely matches the quality of your tinnitus tone.Click on the Play button to listen to the program’s computer-generated tone.NOTE: You can set the volume using the audio level control of your computer and/or you can use the volume slider in the app. Set the volume to a low level before you begin.In a quiet place, connect your headphones to your device. Place them over your ears.If your tinnitus frequency changes during the course of treatment, you can return here to detect it again. Every tape formula has a distinctive smell and some brands carry a distinctive family smell it's relatively easy to learn how to identify a tape formula by smell alone by storing a reel of tape in a plastic bag as well as the box and just just sniffing the bag storing the tape.If you are using an iPhone make sure that your ringer switch is on (switch on the side).īefore you treat your tinnitus, you must identify the frequency of your tinnitus tone. Once you find a tape formulation you like, use it exclusively. wait until there's a minute or three of tape on the take up spool or hub, then start. Grab some tape before you attempt a bias setting ie don't use the tape at the start of the hub or reel. Ideally the playback will show the same Vu level as the record, but somewhat more important is the playback levels of the two tones relative to each other. Record the two bias setting tones at -20Vu (cassette) -10Vu (consumer tape deck) or 0Vu (professional tape deck). A 1 Khz tone can also be useful, however. 400 Hz is a good second tone, you only use the two. You can substitute 20 Khz if the machine uses at least 1/2" tape and you are recording at 30 ips. Stay tuned, if anything works I'll draw it up on that original thread.Īn upper limit for bias tone generator would be 10 Khz for any 1/4" tape machine or smaller (eg cassette 1/8"). ![]() I'm trying to fly the drill it yourself lexan board over the mcmelecttonics pcb, but holiday preparation has got in the way. I've got some new $.85 DIP project boards from mcmelectronics, the DIP socket fits and solders fine but there is no room on it for the 15 discrete parts involved. I have been trying to get it packaged with test circuit 12 on the datasheet () but I've mostly proved solder sticks better to drill it yourself lexan and beigh CB boards than it does to socket pins. ![]() You can still get the IC in DIP package for $6 at. The Exar XR2206 sine wave generator IC looks to be a lot more professional, but the nifty kit that was built on top of this is long gone. BTW, the power supplie I have dedicated to this is a 4 amp 12 V CT battery charger transformer on an open frame that produces 19.5 V full wave rectified (1500 uf cap) or 9.5 V half wave rectified (2200 uf cap) both using the minus rail as reference. The GE circuit is not producing any tone I can hear through the amp I'm trying to repair, that does play a transistor radio a bit into a speaker before motorboating. Don't know if the 6 mv was ~800 hz (with. Have tried both 2n2905 at reversed polarity, and 2n3904 with as drawn polarity so far, got 6 mv out a little while but the o-scope sweep quit, I guess it blew the power supply. I'm trying to build a 2 transistor oscillator from the GE Transistor manual 7th edition, it worked with a lot of hum imposed but when I put enough capacitance on the rail to get rid of the hum it just sits there. The EDN link for an amplitude stable oscillator leads to some op amp circuit using an op amp I don't have. Check out this link for a build it yourself: The Eliot project has way too many parts for my taste, a split supply which is another 6-9 parts, plus some weird light bulb I don't have as a PTC Resistor.
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