It outputs 0.050% THD @20kHz and full power (+-8.8V output) 8W power (16W peak) -> 12W average.
It outputs 0.010% THD @20khz and 6.6W power.
It outputs 0.006% ..... @20kHz and 1/4 power (...................) 2W power (4W peak) -> 3W average.
need 1-2 more pairs for full +-20v output.
There are two FFTs attached. They are both @20kHz.
P.S. What transistors to use instead TIP3055/2955 ?
It outputs 0.010% THD @20khz and 6.6W power.
It outputs 0.006% ..... @20kHz and 1/4 power (...................) 2W power (4W peak) -> 3W average.
need 1-2 more pairs for full +-20v output.
There are two FFTs attached. They are both @20kHz.
P.S. What transistors to use instead TIP3055/2955 ?
Attachments
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Need to implement a way to control the current through the output. As is, it will continue increasing current with temperature and self destruct.
D6 for Q2 and D4 for Q3. They are thermotrakers.
Actually I am wondering for Q1 ? Does it need a thermotrak ?
heheh class a for the winter 😀 hahah Class A from the beginning to the end.
Actually I am wondering for Q1 ? Does it need a thermotrak ?
heheh class a for the winter 😀 hahah Class A from the beginning to the end.
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D6 was error and Q1 dont need thermotraking ! If there are D6 it will do the opposite.
LTP does the job for Q1 and Q2, D4 for Q3.
Im attaching a new sch with added another pair of power transistors, removed D6 and output power of 30 Watts.
new specs -> THD @ 30 Watts and 20kHz == 0.014% ,
its perfect for my transformer since it needs 184W, im having 260 😛
i was afraid i will run out of power 😎 cool
But hey this is only one channel 😱 not cool 😀 🙄
Can I use 368W with 260W tranformer ? If I cant I will make it Mono amp with 2 audio inputs and output speakers paralleled.
This is "Monster A"
LTP does the job for Q1 and Q2, D4 for Q3.
Im attaching a new sch with added another pair of power transistors, removed D6 and output power of 30 Watts.
new specs -> THD @ 30 Watts and 20kHz == 0.014% ,
its perfect for my transformer since it needs 184W, im having 260 😛
i was afraid i will run out of power 😎 cool
But hey this is only one channel 😱 not cool 😀 🙄
Can I use 368W with 260W tranformer ? If I cant I will make it Mono amp with 2 audio inputs and output speakers paralleled.
This is "Monster A"
Attachments
Last edited:
cryo cooling
I'm still intrigued by some sort of liquid cooling. Its been covered on the forum but I don't really see any breakthrough.
Will check the old expired patents on Google patent search.
An Overview of Liquid Coolants for Electronics Cooling Electronics Cooling Magazine – Focused on Thermal Management, TIMs, Fans, Heat Sinks, CFD Software, LEDs/Lighting
This link has a lot of basic info.
I'm still intrigued by some sort of liquid cooling. Its been covered on the forum but I don't really see any breakthrough.
Will check the old expired patents on Google patent search.
An Overview of Liquid Coolants for Electronics Cooling Electronics Cooling Magazine – Focused on Thermal Management, TIMs, Fans, Heat Sinks, CFD Software, LEDs/Lighting
This link has a lot of basic info.
If you do not thermally connect the bias diodes to the heat sink, it will destroy itself! Place a 0.1R 2W resistor in the emitters of the output transistors, that will help with heat regulation.
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