1 watt audio amplifier and

[p88prw]

hey guys was just wondering if anyone could give me some ideas for what a 1 watt audio amplifier could be used for, thanks

 

[antknee]

You could use it in your doorbell. Put some ACDC on a chip then play it when someone rings. You could try the song Hells Bells

 

[Reloadron]

A signal tracer probe as illustrated **broken link removed** could be connected to it to make a nice small and simple signal tracer. There are plenty of uses for a small 1 watt audio range amplifier.

Ron

 

[bychon]

You could use it as a miniature guitar amplifier.

 

[p88prw]

would this amplifier be able to run 2 small speakers, if so what would i have to do to get it to work?

 

[Reloadron]

would this amplifier be able to run 2 small speakers, if so what would i have to do to get it to work?

Now it depends on the speakers (impedance) and what this small 1 watt amplifier is designed to work into as far as speaker impedance. If it was designed to feed a small 8 Ohm speaker then it should drive two small 4 Ohm speakers in series. Exactly what are you trying to do as in where is this all going? You can't make a silk purse out of a sow's ear.

Ron

 

[p88prw]

i was wanting to connect the amp to two small 20 watt 4 ohm speakers and then into a computer

this is the amplifier i have ---> **broken link removed**

sorry if i have been vage but i am quite new to this

thanks

 

[Reloadron]

I don't think the little amp is designed to provide line in levels to a computer. Additionally it would only be monaural and not stereo (two channels). A computer's audio inputs want to see standardized line in signals. I also doubt you will get much from a pair of 4 Ohm 20 watt speakers.

This read may help you better understand what a computer's audio Line IN and Line Out are all about.

Just My Take
Ron

 

[p88prw]

ok then, thanks, do you no if it would it be possible to run it from an ipod shuffle to a single speaker?

al give that link a read thanks

 

[Reloadron]

ok then, thanks, do you no if it would it be possible to run it from an ipod shuffle to a single speaker?

al give that link a read thanks

Taken from their data sheet:

Q- Could this be used to boost an i-Pod headphone output to a line level input (line level input requires 1000mV) ? - shakey

Answer- No sorry this product does not support that.

Nope, again you need to remember this is just a very small monaural single chip amplifier.

Ron

 

[p88prw]

ok then thanks ron,

someone mentioned above about useing it with a door bell how would that work?

 

[Reloadron]

ok then thanks ron,

someone mentioned above about useing it with a door bell how would that work?

Antknee mentioned the doorbell idea. That idea has a few possibles and a downside or two. I have no clue how much power the thing draws in a quiescent state but a doorbell scheme would likely require batteries so battery life figures into things. Unless of course it is line powered with a small power supply.

As to the signal? Just about anything would work. You could likely buy a greeting card and play it back through the amplifier or buy a small chip that you can record your own 20 second message on and play it back. The possibilities are really endless so get creative.

Ron

 

[antknee]

How about attaching a recorded chip and vibration sensor to it and putting it on your letterbox. Then whenever the postman delivers your mail you could set it to say "Thanks!"

 

[p88prw]

im still unsure as to what i want to use it for

 

[audioguru]

The "1W" amplifier from Maplin uses the LM386 little power amplifier IC. It cannot produce an output of 1 Watt unless the output is an extremely distorted square-wave.
Its output at clipping into an 8 ohm speaker with a 4V supply is only 0.06W, with a 6V supply its output is only 0.2W, with a 9V supply its output is only 0.45W and with a 12V supply it gets very hot and has an output of only 0.53W.

Driving a load of 4 ohms or 16 ohms results in less output power.