I believe we are missing the main question of the post. He wants to know the pin outs of transistors. About 20 years ago I found this schematic:
It shows if you connect a transistor with the proper BCE connections and the proper ground and positive connections it will hum. Positive and ground can be altered with a Double Pole and Double Throw Switch so this takes care of our first problem. A couple more of these switches takes care of switching the B C E to alternate positions but you may have to alternate the flat spot by turning the transistor upside down using this schematic:
Please excuse the randomness of this file, remember I am a die maker and was just beginning. The colors meant something to me and I threw out some things that I did not believe were necessary. Back then I used AutoCAD 17 to draw the holes necessary above the speaker and center punched from paper drawn at full scale. I also added the holes for screws and nuts (with a washer) to hold the speaker in place. I do not remember but I may have used a mill for the slots to move the switches from left to right. Anyhow I came up with a box to hold my new invention:
The place where you attach the transistor is an attachment for holding IC's cut off to three places with a Dremel. Sometimes you will get a screech instead of a hum because NPN and PNP's work backward. Just look for the lowest hum. And yes you beer lovers out there that is the bottom of a Pabst Blue Ribbon can. My mug turned kinda dark in the top right hand corner probably because of the flash.
If you have a good ear for music you can use this for matching transistors!
Also notice the scratches on the table; my wife says this is the only table in the house that I am allowed to play!
Comments
I believe we are missing the main question of the post. He wants to know the pin outs of transistors. About 20 years ago I found this schematic:
It shows if you connect a transistor with the proper BCE connections and the proper ground and positive connections it will hum. Positive and ground can be altered with a Double Pole and Double Throw Switch so this takes care of our first problem. A couple more of these switches takes care of switching the B C E to alternate positions but you may have to alternate the flat spot by turning the transistor upside down using this schematic:
Please excuse the randomness of this file, remember I am a die maker and was just beginning. The colors meant something to me and I threw out some things that I did not believe were necessary. Back then I used AutoCAD 17 to draw the holes necessary above the speaker and center punched from paper drawn at full scale. I also added the holes for screws and nuts (with a washer) to hold the speaker in place. I do not remember but I may have used a mill for the slots to move the switches from left to right. Anyhow I came up with a box to hold my new invention:
The place where you attach the transistor is an attachment for holding IC's cut off to three places with a Dremel. Sometimes you will get a screech instead of a hum because NPN and PNP's work backward. Just look for the lowest hum. And yes you beer lovers out there that is the bottom of a Pabst Blue Ribbon can. My mug turned kinda dark in the top right hand corner probably because of the flash.
If you have a good ear for music you can use this for matching transistors!
Also notice the scratches on the table; my wife says this is the only table in the house that I am allowed to play!