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amplifier circuit

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erpdude

New Member
i am interested in making a small amplifier, much like the smokey amphere, small enough to fit into a cigarette box, and obviously the circuit has to work on a small speaker, say .5w, i was wondering how i could lower the output of a regular amplifier circuit so that it gives off around .5w so that i can use a smaller speaker, and prferably run it off a 9v battery.
any diagrams would be helpful
thanks
 

mozikluv

New Member
low voltage amplifier

:D hi, seen your post and the reply you got was LM386. Its a nice device, very simple circuit and it operates at a wide voltage range, however if you're looking for a transistor circuit operating only at 6v, i have designed one and have been using it to drive a 4" 8ohm 4w speaker. It give a good clean high & midrange. if you're interested just say so. :D
 

mozikluv

New Member
small 6v amp

:D okay heres the parts you need:
1. 9014 3 pcs. (used for input and driver stage)
2. 5610 or B562 NPN 5609 or D468 PNP (used as output )

I dont have your email add. mine is [email protected] or [email protected] any of address will do. as soon as i have add. i will email the schematic. :D
 

mozikluv

New Member
email address

:( hey man the address you sent cant be reach, sorry! :oops: :

heres the simple circuit diagram of the mini guitar amp, any questions pls feel free to do so thru my email add. :D
 

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mozikluv

New Member
cant understand your post

:?: hoffball, i dont get ur msg. sorry. :?
 

erpdude

New Member
amp circuit

thanks for those lads, but does it say on the LM386 what type of transistors to use? i couldnt see it. and is there any way to add some nice tone potentioometers to the circuitry of your circuit mozicluv?


thanks again
 

mozikluv

New Member
lm386 for guitar amp

:D hey erp,

there's no need for the transistors, the lm386 will do the job as a small guitar amp. as you can see on the schem there are no transistors involve.

the other amp which i was talking is another amp operating at 6v. am not recommending this as a guitar amp. you may use this on other audio purposes and besides i have not tried it as a guitar amp. you may try but you have to alter the input stage.

if you still want the circuit of this 6v amp 1.3w i can post it here. :wink:
 

erpdude

New Member
amp circuit

do you mean buy the lm386 chip?
i cant find anywhere that sells them and on that site i think you have to buy them in the hundred thousands. i only want a few :(

yes that other amp would be tasty thanks, im trying to get as much stuff as possible.
 

mozikluv

New Member
guitar amp circuit

:D erp,

i'll try to find the sub for that, but for the meantime is KA2201 available in your place? :cry:
 

Sankt-Seibel

New Member
LM386 datasheet

Hi
i saw the scribbled circuit diagramme and thought you 'd bette get a datasheet. I live in Europe and bought the LM386 a few days before. It costs about 1.50 Euro. It is easy to handle and i made a stereo-ampflifier that i always use instead of the getthoblaster in my room (my parents do always complain how loud it is)
always glad to help anyone
sankt-seibel
 

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BeAsTiE

New Member
overdrive

the smokey guitar amp has an overdrive to obtain those crunchy tones...i was lookin to make a little amp that runs off a 9v battery and has that gain, wattage isnt important aslong as the tone can be obtained...i can find a speaker to match.

Any help would be much obliged

Thanx :D

Tom
 
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