One off my Audiopax 88s has gone up in smoke.

Charles, I live in Brazil and I am a friend of an Audiopax partner.
I spoke with him, he is aware of your amp's problems.
I understand that Audiopax has offered to exchange your amps for new ones for a nominal fee, however this was not feasible on your side.

An Audiopax principal will contact you in a few days, as soon as parts are ready, to make arrangements for free-of-charge repairs.
If you need my assistance, by all means e-mail through Agon.
Best wishes
Carlos

Charles, this is an update: my friend at Audiopax has informed me that they have contacted you in order to arrange for replacing the transformer free of charge.
Please respond to their e-mail to get the ship-to address in Europe.
My best wishes
Carlos

Charles, I am glad to know that your problem has been solved.
If I understand it correctly, you have received upgraded amplifiers with new, improved transformers.
Audiopax has set up new service centers in Europe and the USA in order to respond faster to customer requests.
Have fun and enjoy the music.
best wishes
Carlos

Brawny, I would like to point out some details that may help understand the full story:

Charles purchased used 220V amplifiers from overseas and connected them to UK's 240V, which these days is closer to 250V. Of course a transformer melted down.
He tried fixing the amps through a local tech, who made a basket case of the amplifiers. A lot of time was spent - actually more than 12 months - trying to fix the amp locally, not Charlie's fault in any case.

Audiopax went through a major reestructuring recently. On June 25, I read Charlie's post and reported the issue to one of Audiopax's new directors.

Upon receiving my e-mail, Audiopax designed a new over-specified toroidal power transformer for Charle's household voltage. A pair of transformers was custom-made, bench tested for a month, then the amplifiers were shipped back, free of charge, within a workable timeframe for a total redesign of the power supply.
My best wishes
Casouza