Yieeeeeeeehhhhhhaaa
At least the amp sound as I wanted!!!
The sound is normal with 0.47 µF, and warm with 1µF; so I'll took the 1µF of course (
); for higher sounds use 0.25µF.
I think I will use these three values with a switch, so you can adjust the amp to your speakers with the switch.
Hey, do I hear CCR 'live' in my hobby-room ???
HB.
At least the amp sound as I wanted!!!
The sound is normal with 0.47 µF, and warm with 1µF; so I'll took the 1µF of course (
); for higher sounds use 0.25µF. I think I will use these three values with a switch, so you can adjust the amp to your speakers with the switch.
Hey, do I hear CCR 'live' in my hobby-room
??? HB.
I'm think to use 4 PCB's in total with each 4 transistors
So, that will make 16 transistors in total, and the acht plastic ones, for the bridged stereo-version, which can will drive 8 ohm load.
woooh, I've made that heatsink + fans already, and have also the necessary supplies and the caps, so I only need to make 3 another PCB's. That will take about two or three weeks to make that PA-amplifier I always wanted.
I will publish some pictures if it is so far...
HB.
So, that will make 16 transistors in total, and the acht plastic ones, for the bridged stereo-version, which can will drive 8 ohm load.
woooh, I've made that heatsink + fans already, and have also the necessary supplies and the caps, so I only need to make 3 another PCB's. That will take about two or three weeks to make that PA-amplifier I always wanted.
I will publish some pictures if it is so far...
HB.
hey thanks,
the amp works fine but I want to change some things ( ).
As I've told the TIP142/147 are not enough (they blew again when I made a little mistake with setting up the bias...).
So, I think I'll get me some new components thursday or friday.
This is what I've got in mind to change:
*)when I have my new TIP's I can add the Mj15003/15004's too
*)change the bootstrapping thing (R9-R8-C5) into a current source
*)change the bias diodes and the potmeter by a fixed resistor; I will try to make the current of the current source depending of the temperature with some diodes (and a resistor) in front of the base of the current source (transistor)
*)so I have to make a new pcb too
I will publish the whole new schematic as soon as possible...
HB.
the amp works fine but I want to change some things (
).As I've told the TIP142/147 are not enough (they blew again when I made a little mistake with setting up the bias...).
So, I think I'll get me some new components thursday or friday.
This is what I've got in mind to change:
*)when I have my new TIP's I can add the Mj15003/15004's too
*)change the bootstrapping thing (R9-R8-C5) into a current source
*)change the bias diodes and the potmeter by a fixed resistor; I will try to make the current of the current source depending of the temperature with some diodes (and a resistor) in front of the base of the current source (transistor)
*)so I have to make a new pcb too
I will publish the whole new schematic as soon as possible...
HB.
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