jacco vermeulen said:
Sparky is a great little amp. Lots more authority than the regular LM3886 and runs a lot cooler than the Krell. It got a little more hummmmmmm (but its not something you can notice unless you really try) than the 3886 but that's possibly due to my sloppy wiring. I am quite happy with it.
The thread on Sparky is here.
luka said:
Luka,
Are you using the original IEC-320 inlet? I would reconsider this. If you are the only one who will be working with this, that is OK, but if someone else is going to touch this, then it would be a very good idea if you labelled it accordingly to avoid them inadvertantly plugging it inot 120VAC or even worse, 240VAC. Just a thought.
Steve
You are completly right.This will be only for personal use.But I did make cable for it, so I don't think some would use it in normal 230ac outlet, unless he/she would like to see sparks, heavy smoke,big bang,...
Too bad about the ...
... The Fan ... does it ever come active?? Wondering if it is actually needed.
... The Fan ... does it ever come active?? Wondering if it is actually needed.
Hmmmm. I think the feedback path is far too long and the supply caps are too far from the chip.
Mick
Mick
Re: Too bad about the ...
🙂
The area of radiators is too smallFastEddy said:... The Fan ... does it ever come active?? Wondering if it is actually needed.
🙂
My Gainclone Project
This is my Gainclone project. I designed my own PCB and build an alu case from scratch.
The amp has an external power supply, as can be seen at the photo's.
For more info check my homepage
my diyaudio site
This is my Gainclone project. I designed my own PCB and build an alu case from scratch.
The amp has an external power supply, as can be seen at the photo's.
An externally hosted image should be here but it was not working when we last tested it.
For more info check my homepage
my diyaudio site
Very clean, Durk.
What did you do to the aluminium front plate ?
(ex watercooled Zündapp owner, heavily tuned German production model KS50, 130kmh
)
What did you do to the aluminium front plate ?
(ex watercooled Zündapp owner, heavily tuned German production model KS50, 130kmh
)To answer your question about the frontpanel of my GC:
It is just painted with silver wheelpaint (Motip velgenspray). Nothing special actually. In the future I will try the principle explained on a tread from the forum www.zelfbouwaudio.nl (dutch only)
Which gives a scratchproof surface, also low cost.....
It is just painted with silver wheelpaint (Motip velgenspray). Nothing special actually. In the future I will try the principle explained on a tread from the forum www.zelfbouwaudio.nl (dutch only)
Which gives a scratchproof surface, also low cost.....
integrated gainclone and Digital receiver
This was my first gainclone... a single integrated component. The chassis houses LM3875 bpards (Audio Sector), a NOS DAC (also audio sector) and a digital audio receiver by squeezebox.
The amp uses two PLitron toroids (120 V 22VAC). The case was manufactured by
Hexateq AV and i applie the custom black anodize finish on this end.The sound is clean and fast. I am a little dissapointed in the gain so i may investigate a buffer section.
It is still burning so i wwill wait before i pass judgement, but so far i like what i hear.
Thanks to everyone who lent there hand, Peter Daniels, Richard Krolla and the community at DIY audio.
Cheers
This was my first gainclone... a single integrated component. The chassis houses LM3875 bpards (Audio Sector), a NOS DAC (also audio sector) and a digital audio receiver by squeezebox.
The amp uses two PLitron toroids (120 V 22VAC). The case was manufactured by
Hexateq AV and i applie the custom black anodize finish on this end.The sound is clean and fast. I am a little dissapointed in the gain so i may investigate a buffer section.
It is still burning so i wwill wait before i pass judgement, but so far i like what i hear.
Thanks to everyone who lent there hand, Peter Daniels, Richard Krolla and the community at DIY audio.
Cheers
Attachments
A question for durxter, what kind of powersupply did you use? Looks like its only the transformator in the black box? How does it sound?
The power supply is a single transformator 2x22V 225VA. The diodes are mounted on the PCB in the amp case.
It sounds very nice in combination with my TQWP's. It's a very good sounding amp, which can compete with many commercial amps costing more money.
It sounds very nice in combination with my TQWP's. It's a very good sounding amp, which can compete with many commercial amps costing more money.
My Gainclone
An externally hosted image should be here but it was not working when we last tested it.
