Sq's system.

[sq225917]

Here's the new 20 amp diode bridges with their +/- wiring. That's an AA battery for scale, I don't have much fear these will overheat....

[Rare Bird]

I Thought you would have gone for bridge rectifiers made from individual Diodes!

[Yomanze]

I Thought you would have gone for a full wave bridge rectifiers made from individual Diodes!

Not in an early Krell or something else like an early Pass Labs. There are also claimed advantages e.g. matching of diodes.

[sq225917]

Andre at 20 amps (US) you need the thermal mass to bolt down to dissipate the heat. I was tempted by the IXYS silicon bridges, but at £100 each, nah......

[Rare Bird]

I just thought that's what serious Hi-Fi guys did automatically but i understand.. Yeh ive seen those IXYS Packages i think they are German..

[The Black Adder]

Eeee, sithi tha doin a reyt good job o that sunshine! - spot on!

[Rare Bird]

Aye reyt goowd amps dem towd Krells

[sq225917]

460 miles of driving
105 hours of unscrewing, removing, twisting, cutting, scrubbing, wiping, rubbing, spraying, wire brushing, polishing, screwing and soldering.
16 crimp fittings
12 brass screws
4 metres of solder
3 foot of solder wick
6 pints of PSU caps
3 metres of wire
36 small signal caps
50cm of heatshrink
2 tins of isopropyl cleaner
1 tin of flex remover
10 grazed knuckles
1 squashed toe
1 arse flapping moment

and it's job done...

[YNWaN]

Yeah, nice job, I thought it sounded jolly good .

[sq225917]

Right then no more after this I promise.


Dirty vent slots, back/centre and RHS where the PSu cap has let loose and the electrolytic has carbonized the anodizing.


With the help of a cordless drill, some bamboo kebab skewers and a bottle of T-cut (fine) I was able to polish out all the carbon without damaging the anodizing.

Now it's done...