A generic rectifier/smoothing PCB

[John_73]

Reckon a 6-way is definately the way to go, and I'd certainly take a pair of those.

Thanks,

- John

 

[batjodel]

I would take 6 pcb's. The slightly enlarged 6 way would be prefered.

Dave T

 

[Bemused]

I would up from two to six should the new version come off

 

[flatpopely]

Hacker.

Whatever it takes to get the right amount of Caps for a NAP style amp would work for me.

P.S Quad rail PSU based on your boards much liked at the weekend driving my 72!

 

[sq225917]

6 bigger caps, yup

 

[LoBo]

would the bigger boards fit into a 140? if so definitely yes

 

[trancera]

Just a note really. If you have four way boards they will take 4 BHC / Kendeil etc at 35mm. two boards is twice as much and better diodes than as used in a NAP 180, it provides a very good psu indeed.

 

[337alant]

The rectifier diods where pritty tight against the caps as well so a smidgin more space there would help

Alan

 

[sq225917]

And comments in the user manual about flipping LED's for flipped rails might help us thickos work out why our Leds only work on one side...

 

[DubbLinn]

The rectifier diods where pritty tight against the caps as well so a smidgin more space there would help

Alan

I would suggest the same modifcation and maybe enough space for a small heatsink on the rectifiers, maybe?

Put me in for 4 of these modded versions.

 

[simonbrown]

I'd certainly be interested. at least two.

 

[flashgo]

The available space in a NAP140 where the Naim cap bank sits is about 85x140mm (still some space, but just).

6 x 35mm caps = 70x105mm minimum.

Now add 25mm on the input/diode end + 10mm on the output end = 140mm in length, and the boards need to be 15mm wider so that the caps don't cover the Ls or Rs. So that's a grand total of 85x140 needed to fit a Hacker 6-Cap with necessary accoutrements. The board will overhang the DIN connector a bit, but that's OK since there's only 10mm of output connections on that end.

How do these things just happen to work out?

 

[mikesnowdon]

Carl,

Will the new board allow 6 caps of 30mm diameter or 2? And will there be a bit more room for the diodes, perhaps even extra mounting holes to allow axial shottkey diodes as an option?

 

[trancera]

Well the current boards allow 4 x 35mm I'm sure Carl will be gunning for 6 x 35mm this time as power amps seem to be a popular suggested use for the boards.

35mm allows the best of the nice caps to be fitted Kendeils, Nichicon, BHC, BC, Elna whatever so gives you good options Mike.

I have said this before that anyone sitting with the 4 way boards will still build a fine amp with 4 x 35mm in them, with twice the capacitors of a Naim 180, certainly no slouch for your investment. Team them up with seperate transformers similar to a ZAP250 style amp and you should be happy - better than a 180, more current than a 250 ...

And if you have 4 boards theres always 2 x 8 way - jump from one to the next with inductors

 

[mikesnowdon]

Cheers.

I actually made a typo in my post above regards the cap diameter. Should have written 35mm.

So If the new boards have space for 6 x 35mm caps, will there be the option to run 8 smaller caps perhaps?

Personally I dont require any just yet but will probably get a set of the new boards for future projects.

 

[trancera]

8 ?! don't confuse Carl!!

I sent him a pic with 6 on last time but he had so many different suggestions it got lost in the daze


(hehe)

 

[mikesnowdon]

HaHaHa!

I was thinking like the current boards have the facility for 4 large caps or 6 smaller ones, why not continue the theme on the new boards?

Im sure thye will be great.

 

[hacker]

Very confusing, but the v2 boards will have space for 6x 35mm diameter caps, plus more room for the diodes and some extra holes for 0V connectors because I always seem to run out!

 

[mikesnowdon]

Nice,

Extra holes for axial diodes would be good too.

 

[Herat]

And some space for a head sink?

Ronald