The illustration is precisely the same Alan. Taking a TOTL Hypex amplifier module and power supply vs a TOTL aircraft engine. Compromising with a small number of poor components results in exactly the same outcomes- premature failure, which could have been averted with better component choice and minimal cost increase.
@Apollon Audio is already offering an upgrade to tier one, highly reliable capacitors. Instead of burying your head in the sand and unsuccessfully trying to steamroll your agenda here, you could be investigating doing the same.
As I said further back in the thread, put pressure on Hypex to implement a better standard of components and this discussion will never occur again. Otherwise it will keep coming up, over and over. The Hypex modules are beautifully built, apart from cheap capacitors. In my and thousands of other technicians experience over many decades, it is the power supply electrolytics from cheap manufacturers that cause us the most pain.
And who has plucked "absolutely reliable for 50 years" out of the air? You. But let's have some fun. How about 45 years? I've just grabbed a Sony TA-3650 which sold for £190 in 1976. Hardly TOTL, but not super cheap either.
It is completely original. I recently tested the entire amplifier and it is flawless. Right from the perfect tone control curves, filters, frequency response, noise performance and power output was well above spec. Any capacitors that have drifted or failed would have affected the numerous tests I performed.
Shall we see what cheap and nasty capacitors are in it? Surely Sony would have saved money on a middle of the range amplifier?
Photos to come.