Elektor this month (November/December 2022) have an interesting amp with the following numbers: THD+N: 0.000.8 % at 50 W
into 8 Ω, maximum power 98 W into 8 Ω or 188 W into 4 Ω with THD ≤ 1 %. Uses a DC servo and is fully protected against DC on output and PSU faults... final drive is NJL3281D/NJL1302D, which are nice devices...
All PTH construction too... I've been tempted to build another "straight bit of wire with gain" amp for a while and with the PSU requirements this has, an "ideal rectifier" PSU based on the LT4320 (or similar) would be nice...
Really quite tempted...
2022-11-07 17_56_31-210364-01.pdf - Adobe Acrobat Pro (64-bit).png (145.77 KiB) Viewed 1603 times
Everything that I have ever built from Elektor has worked well for a short time, then failed. Amplifiers, preamplifiers, NiCad battery chargers and the like. Maybe it is me but I doubt it.
rowuk wrote: ↑Mon Nov 07, 2022 7:08 pm
Everything that I have ever built from Elektor has worked well for a short time, then failed. Amplifiers, preamplifiers, NiCad battery chargers and the like. Maybe it is me but I doubt it.
Nah. It's you!
Being fair, I've built a few things from elektor over the last 40 years or so and they've always been fine...
