Firstly, i would like to introduce myself. I have recently (6 weeks) started a national diploma at college in electronics. So far, I have suprisingly found it really interesting and therefore have started to take interest in formus like this one.
I have just finished making a bargraph display on breadboard, a knight rider scanner with a 1458 and a lm3914 chip, and have been looking on the net for other ideas.
I came across the schematic diagram of "shunters", which uses a lm3915 ( same as the lm3914 - correct me if im wrong)...
https://www.electro-tech-online.com/attachments/voiceboxmodified-jpg.12975/
As, on a youtube series of videos created by shunter, Part 1 (https://uk.youtube.com/watch?v=V4s7JiWgoaM&feature=related) of the series shows him putting a mp3 player into the system, and playing the knight rider theme tune through a amplifier and speaker. The voice box also reactes to this. i understand everything.
Now, the bits i dont understand...
How to wire up the 6 displays (cathodes and anodes)
Do you need the transistors as it states that you may not need these
And...probably the main bit... the audio transformer. I assume that this is where i woulod plug my mp3 player into the curcuit.
I would appreciate it if someone could explain as much as they can about this curcuit. Mainly, the audio bit i.e. amplifier, speaker and mp3 input.
Sorry if my terminology is wrong.
Thanks
I have just finished making a bargraph display on breadboard, a knight rider scanner with a 1458 and a lm3914 chip, and have been looking on the net for other ideas.
I came across the schematic diagram of "shunters", which uses a lm3915 ( same as the lm3914 - correct me if im wrong)...
https://www.electro-tech-online.com/attachments/voiceboxmodified-jpg.12975/
As, on a youtube series of videos created by shunter, Part 1 (https://uk.youtube.com/watch?v=V4s7JiWgoaM&feature=related) of the series shows him putting a mp3 player into the system, and playing the knight rider theme tune through a amplifier and speaker. The voice box also reactes to this. i understand everything.
Now, the bits i dont understand...
How to wire up the 6 displays (cathodes and anodes)
Do you need the transistors as it states that you may not need these
And...probably the main bit... the audio transformer. I assume that this is where i woulod plug my mp3 player into the curcuit.
I would appreciate it if someone could explain as much as they can about this curcuit. Mainly, the audio bit i.e. amplifier, speaker and mp3 input.
Sorry if my terminology is wrong.
Thanks
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