If I may ask, at which ambient temperature ?
(the power amplifier you are building is far from suitable for AB operation. you would not enjoy it, imo)
Ambiant temperature of my room is 19-20 Celcius. It's in the basement so it stays cool all year long.
Thanks
Do
The top of the amplifier was installed and it was running for about an hour which is sufficient to know. The temperature stopped climbing after ~40 minutes. Anyways, the 100 watts is a dream but in reality I will most probably put it at around 40 watts in Class A, it gets too hot in the room. In reality and practically, 25 watts in Class A should be sufficient and the rest in AB.
I have to test my comfort level in the room after setting the bias to be at 40 watts in Class A and if too hot in the room bring it down. It will also save on electricity!
Ciao!
Do
I am using that setup as we speak, 4 aleph mini's 20 watts each class a, and a 200watt high speed class a/b..
Revision/One
3 channel mainboard for use in Philips MFB enclosures, fits as a 1:1 replacement to the original electronics.
3 channel mainboard for use in Philips MFB enclosures, fits as a 1:1 replacement to the original electronics.
An externally hosted image should be here but it was not working when we last tested it.
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Now I using AD8066 (i/v) and AD825 (LPF) instead LM6172+LT1468. I've think, that AD8065 will be a little better than AD825, but not sure.
(new filter for OpAMPs).
Attachments
Well, good luck with your build anyway. I have several, different china amps. They always seem to work out as expected.
Vertical MOSFET output stage, with lateral MOSFET drivers (TO-3P ones).
If I may ask, a clone of which/what ?
first of. it was not zeepup that posted the orignal post with this amp
Jacco: is there a China e-bay amp that is not a clone of anything?
Not that I'm aware of! They clone anything to make a buck..