A few photos: The Before picture . At the back another ebay bargin (the pair of Martin Logans cheaper than the headphones + amp...).   The caps we're looking to replace. Oh, and they're not kidding.   You really, REALLY, want to be very disciplined around the insides of this...

Well, finally got it done.   Spritzer kindly shared some of his experience and on his advice I went with bigger caps.   Again, it was Nichicon but in 270 uF 420 V spec, UPTW6271MRD. The rated ripple current is 1.2A which is, ahemm, surely "sufficient" - in the same way that horsepower in...

Looking like UPW2W101MRD from Nichcon, low impedance, 100 uF, 450V, radial leads @ 12.5mm spacing, 8000h @ 105 deg C reliability and 350 mA max ripple current. Available from Mouser, now I just have to see if I need to buy any more components to cut down the burden of shipping (or if I run out...

Well, I had the bottom cover off. Less intrusive than I feared, since the screws through the bottom cover only attach to spacers (they do not go through to the PCB).   It looks like the power supply caps are snap-in with 12.5mm spacing between the centres of the leads on the PCB side (i.e...

.. make that 100 uF 400V . Ooops. This makes a significant difference to the connectors - I can get radial leads for this voltage. That's nice .   Off to gather courage to take the bottom off to look at the PCB (easier said than done, the lower cover and the feet bolt through to nuts sitting...

Hi Kim,   I'm in France, so in practice any supplier that ships from Europe would be fine.   Digikey had a series which Mouser didn't - good hint, thanks. So did Farnell.   I take the point about making sure that it's not more than two pins. I'm still optimistic that some of the Stax...

All,   I just couldn't resist the idea of having a go at refurbishing (if not modifying) my Stax amp. I wanted to do "just" the electroytics and the valves, those being the only components which I could reasonably assume had aged. (The rest of the components look fine, and I struggle to...