300 W in 8 Ohm .
I can't build the Leach amp .. i can't find some transistors here in romania .. i relly like that amp .. well documented .. very good design .
What about the elekton amp ? someone mention about this one upper in this tread ...
Also .. maybe P68 is a good idee .
Thank's !
I can't build the Leach amp .. i can't find some transistors here in romania .. i relly like that amp .. well documented .. very good design .
What about the elekton amp ? someone mention about this one upper in this tread ...
Also .. maybe P68 is a good idee .
Thank's !
Elektor amp
The elektor amp features as follows
+-65VDC @625VA transformer
Although a Symmetrical design PA300 W
Frontend consists of Ne5534 Opamp served as diffrential amp
Voltage amplification and current drive is achieved by MJE15032 and MJE15033 drivers and output stage consists of 2 X MJ15024 and MJ15023 devices
A descent design by Riedl
Disadvantages
Requires too much heat sinking or u have to use force cooling
low slew rate
medium damping factor
The elektor amp features as follows
+-65VDC @625VA transformer
Although a Symmetrical design PA300 W
Frontend consists of Ne5534 Opamp served as diffrential amp
Voltage amplification and current drive is achieved by MJE15032 and MJE15033 drivers and output stage consists of 2 X MJ15024 and MJ15023 devices
A descent design by Riedl
Disadvantages
Requires too much heat sinking or u have to use force cooling
low slew rate
medium damping factor
Re: Elektor amp
you don't have to have the exact transistors. Just find the datasheet for the transistors used and find their equavalents in your country.
thanks like an interesting design. do you have a schematics for it?
darkm4n said:i can't find some transistors here in romania.
Thank's !
you don't have to have the exact transistors. Just find the datasheet for the transistors used and find their equavalents in your country.
amp_man_1 said:A descent design by Riedl
thanks like an interesting design. do you have a schematics for it?
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REPLY
I have the Elektor magazine containing this article with me , But no scanner to scan the image.
Personally I would recommend u another amplifier consists of only NPN transistors at output stage because this elektor amp has not sufficient current gain to provide TRUE BASS THUMPING i.e. Its Damping factor is low.
If u are intersted then i can publish the circuit here for u
I have the Elektor magazine containing this article with me , But no scanner to scan the image.
Personally I would recommend u another amplifier consists of only NPN transistors at output stage because this elektor amp has not sufficient current gain to provide TRUE BASS THUMPING i.e. Its Damping factor is low.
If u are intersted then i can publish the circuit here for u
I've have viewed the Information on the Leach amp via, http://users.ece.gatech.edu/~mleach/lowtim/. It seems that the output power is 120w/8R. Is it possible to make this amp produce around 400w/4R without making any modifications in the circuit, only changes to the components?
Thanks
Thanks
Re: Hi,
You must be joking 2 x 300 W amp for less than a few stamps? From Sweden it costs 5-7 USD worldwide registered mail.darkm4n said:.... because the shipping cost more than the hole amp ... ( for my country ) .
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