Looking for leds ID...

[NB]

Hi,

Got an old 4-tones detector (1 low - 2 medium - 1 high). It works well but the medium tones are too close... So, I'd like to add a 4-leds ID according to the 4 tones (connected on the audio output).

Could you tell me any (no-complex) "diy" circuits???
Thanks
LB

[kt315]

Re: Looking for leds ID...

which parts are used for VCO in your device.
imho, you can use a part similar to Tesoro on 4024, plus 4066, than your mix will be due to Hammerhead's non-VCO option (but all keys of 4066 will be used).

don't mention it...