Are there any proven reliably designed LF amplifier designs power amplifiers for 137 / 475? Wideband, covering both ideally Rated for at least 300 Watts output, and ideally a lot more. I saw G3
Maybe you must look for simply one of early days HiFi audio amps. Someone gave me recently a SONY F420 (1990 design!). 2X 70W @ 4 Ohm flat response up to 100kHz. I put the Ultimate 3S on it and indee
Andy I have used an ENI amp, the 1140L. These work well at 136 with up to 1.5kw on my amp. They are very inefficient as would be expected. They are also very expensive unless you are lucky, mine came
There a few "audio" transistors about, I am using Toshiba complementary pairs 2SA1947 and 2SC5200 (4 of each) with 320W dc input. Naturally there is plenty of heat to dissipate so I fitted large heat