Going Linear with the Caiman

[Clive]

Good point, Clive. What's the biggest high quality cap we could get in there?

There's 28mm clearance. A 4.4uF ClarityCap SA is 30mm diameter. I find these dimensions are approx, often slightly overdone to be on the safe side.

The ClarityCaps are amongst the smallest but more searching is required as we don't need a 630V cap. If we can find 400V or 200V rating caps they should be smaller.

[MartinT]

A Mundorf Mcap Supreme 3.9uF is also 30mm diameter. I wonder which would be better at high performance reservoir duties?

[Clive]

A Mundorf Mcap Supreme 3.9uF is also 30mm diameter. I wonder which would be better at high performance reservoir duties?

My nature is to be sceptical that the capacitor is very critical, I'd have thought any half decent polyprop would be fine. Whether 4uF is better or worse than 10uF could be more a important factor. Another approach could be 10uF elect bypassed with a good 1uF cap or even 0.1uF or 0.01uF - or indeed all three.

[OLED]

This seems very sensible with a very well controlled power supply. I'll chat with techs in our electronics workshop this afternoon to see what they think as well and report back. Have either of you tried it yet by the way?

[Clive]

This seems very sensible with a very well controlled power supply. I'll chat with techs in our electronics workshop this afternoon to see what they think as well and report back. Have either of you tried it yet by the way?

I've not tried it yet. Most recommendations for linear regs specify 10uF as the output cap, so this is the basis for my thinking. I doubt 10uF is that critical, so 5uF or 20uf should be ok too but it would be good to get an opinion on this. The 10,000uF I believe is only in there for switched mode supplies, though it would be fine with an unregulated standard (linear) supply too.

[OLED]

Just been trawling the www, came across these, might be just too big but....
http://www.audiocap.co.uk/sn335j250a...rance-80-p.asp

[Clive]

A Solen 10uF / 400V is 26mm x 38mm. I wouldn't want one as a coupling cap but it would be fine in this PS position.
http://www.audioloudspeakers.co.uk/f...pacitors.shtml

There's a 250v 9.1uF Solen that is 23mm x 33mm, should be perfect.

[OLED]

Whilst getting started on a new linear power supply, it occurred to me that if you use a highly regulated low ripple power supply, do you need a capacitor across the input at all, effectively the power supply already has one across it's terminals?

[HighFidelityGuy]

Would THIS Mundorf Mcap MKP 250V 15uF be suitable for this application?
I got sent a pair by accident when I ordered a higher value and was going to send them back but if they'd work for this then I may as well pay for them and keep them.

[lovejoy]

Whilst getting started on a new linear power supply, it occurred to me that if you use a highly regulated low ripple power supply, do you need a capacitor across the input at all, effectively the power supply already has one across it's terminals?

I removed the PS caps on my 7510 when I went linear with it and it made a remarkable improvement to the sound I was getting from it. Funnily enough I was thinking of doing the same with the Caiman now that I've settled happily on a linear supply with the passive output mod, so you've just spurred me into removing it this week.

Cheers