- #1
LokiMundane
- 1
- 0
I have recently built a 12 watt amplifier spec'd by G. Randy Sloan.
The problem I am having is many fold.
1.) I am not an EE and learning as I am going
2.) The amp WILL carry a signal but so far I have only been able to use it as a passive circuit.
3.)The output leads don't provide an output but if I banana clip my speaker leads to the transistor heat sinks then it carries a signal??
4.) The power supply I have built for it may be built incorrectly. It is a 24 volt 2 amp transformer going to a 2 amp bridge rectifier which then goes to a 1000uF electrolytic capacitor. It is meant to be a mono power supply applying approx 38 volts to the amp.
The transformer has two leands on one side which is going to the ac outlet and three on the other, The far left and far right are then attached directly to the ac leads on the recifier. What do I do with the center tap? Is this a ground?
4.) I am not 100% sure how to test the amplifier circuit but I have checked all the resistances with an ohm meter and it seems to work out.
Below are two pics, on rather crappy one of the schematic and one of the actual amp.
Thank you in advance for any help
http://i155.photobucket.com/albums/s304/loki_mundane/12wattampschematics.jpg
The problem I am having is many fold.
1.) I am not an EE and learning as I am going
2.) The amp WILL carry a signal but so far I have only been able to use it as a passive circuit.
3.)The output leads don't provide an output but if I banana clip my speaker leads to the transistor heat sinks then it carries a signal??
4.) The power supply I have built for it may be built incorrectly. It is a 24 volt 2 amp transformer going to a 2 amp bridge rectifier which then goes to a 1000uF electrolytic capacitor. It is meant to be a mono power supply applying approx 38 volts to the amp.
The transformer has two leands on one side which is going to the ac outlet and three on the other, The far left and far right are then attached directly to the ac leads on the recifier. What do I do with the center tap? Is this a ground?
4.) I am not 100% sure how to test the amplifier circuit but I have checked all the resistances with an ohm meter and it seems to work out.
Below are two pics, on rather crappy one of the schematic and one of the actual amp.
Thank you in advance for any help
http://i155.photobucket.com/albums/s304/loki_mundane/12wattampschematics.jpg