I'm trying to build a tiny mono amplifier with built in speaker.
I want this thing to be super small so I can put it in my pocket and use it with my walkman or PDA.
I have very little experience with this, and I'm struggling just to read a schematic diagram. :shock:
Anyway, I found this little diagram and decided to give it a try:
**broken link removed**
I'm not sure if this schematic is even what I need, but I went to Rad Shack and got the parts and built it. I used the smallest speaker I could find for this: 8 Ohm, 0.1 W (273-092)
Well, it sorta works. I've been testing it with my walkman on an FM radio station, and it works for a couple of minutes but after that it starts making a whining, static noise or even starts osciallating. :?
Can anyone tell me what I need to get this working properly?
Do I need a different speaker or am I using the wrong circuit?
I really want this project small, so I want to use the absolute minimum amount of components.
Thank you!
Drew
I want this thing to be super small so I can put it in my pocket and use it with my walkman or PDA.
I have very little experience with this, and I'm struggling just to read a schematic diagram. :shock:
Anyway, I found this little diagram and decided to give it a try:
**broken link removed**
I'm not sure if this schematic is even what I need, but I went to Rad Shack and got the parts and built it. I used the smallest speaker I could find for this: 8 Ohm, 0.1 W (273-092)
Well, it sorta works. I've been testing it with my walkman on an FM radio station, and it works for a couple of minutes but after that it starts making a whining, static noise or even starts osciallating. :?
Can anyone tell me what I need to get this working properly?
Do I need a different speaker or am I using the wrong circuit?
I really want this project small, so I want to use the absolute minimum amount of components.
Thank you!
Drew