Yeah, but 30C/watt of thermal resistance is also concerning! If I am running 12W per Mosfet, does that mean these little vias run at 380C, assuming a 20C ambient temperature?
No, through the vias goes the current when the diode is conducting, that's when there is more then approx. 0.4 volt over your source resistors. That will be only when playing loud or heavy bass peaks...
Normally they are not conducting.
Normally they are not conducting.
On closer inspection, space is quite a bit more limited than I originally suspected. I can drill out the current via and solder a 1.5 MM copper wire in place or leave it as it is. Thoughts on either option?
looks like the hole has area/surface equal to the copper line
if anything only the edges might cause problems
220 ohm feedback resitors
Hi I wonder if Mills 5 w wirewound resistors in feedback will cause problems ?
Hi I wonder if Mills 5 w wirewound resistors in feedback will cause problems ?
What happened with liquid cooled F5T_V3?
1.4hp pump makes too much noise?😉
..or the fans?
..or both?
Dont't worry! My liquid cooled aleph-X ended up with gravity feed liquid cooling, deep hole drilled alu block and very big heat exchanger. Without pump and fans.
1.4hp pump makes too much noise?😉
..or the fans?
..or both?
Dont't worry! My liquid cooled aleph-X ended up with gravity feed liquid cooling, deep hole drilled alu block and very big heat exchanger. Without pump and fans.
I just purchased one of these refrigerated water cooling units.
Precision temperature control to 2 decimal places.
Probably overkill but if you're crazy nutcase this is a beautiful piece of equipment (not cheap).
Precision temperature control to 2 decimal places.
Probably overkill but if you're crazy nutcase this is a beautiful piece of equipment (not cheap).
Anybody tried to use IT as Class AB? Asking because I think bass is very good but the rest is lousy.
Well, you could argue that a lot people with high rail voltages and not enough heatsink are using this amp class a/b...
I don’t think the bass of this amp is particularly great and the rest is particularly lousy. I would more likely say it’s an amp that is more responsive to tuning (p3, bias, preamp matching) and psu (capacitance quality, chokes, etc) than most amps.
I don’t think the bass of this amp is particularly great and the rest is particularly lousy. I would more likely say it’s an amp that is more responsive to tuning (p3, bias, preamp matching) and psu (capacitance quality, chokes, etc) than most amps.
I am the OP on this thread and I know it's very old but I wanted to circle back. I never completed this build and the boards, PS, etc, are still on the shelf after 6 years. Unfortunately, life got in the way. I am now thinking about recycling the components into a 4-channel Firstwatt F5 amplifier v3. 25W x 4 to be used to drive 2-driver stereo speakers via an active crossover (digital signal processor). Doable? Will 4 channels fit in the DELUXE 4U ALUMINUM chassis?
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