Nightfall,
Even el 34s will generate noticeable heat if they’re operating in class A. Just goes with the territory if the amplifier is rated at say 20 watts and higher. I had a borrowed First Watt S.I.T push pull amplifier (35 watts class A) for several weeks and if ran hotter than my 8 watt 300b SET mono blocks.
Class D amplifiers would be an obvious solution if your fiend can find one with sound he could live with. Not sure if he’ll find one that mimics the LM 518a. Well executed class A is hard to match let alone beat.
Charles
Even el 34s will generate noticeable heat if they’re operating in class A. Just goes with the territory if the amplifier is rated at say 20 watts and higher. I had a borrowed First Watt S.I.T push pull amplifier (35 watts class A) for several weeks and if ran hotter than my 8 watt 300b SET mono blocks.
Class D amplifiers would be an obvious solution if your fiend can find one with sound he could live with. Not sure if he’ll find one that mimics the LM 518a. Well executed class A is hard to match let alone beat.
Charles