Another DIY SS Amplifier with NVA Boards
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Re: Another DIY SS Amplifier with NVA Boards
I could have made you one at the drop of a hat!
I have an aluminium extrusion 200 x 100 x 250 with some oak front and rear fascias....
I have an aluminium extrusion 200 x 100 x 250 with some oak front and rear fascias....
Analogue: oracle delphi sme 309, jbe series 3 cx unipivot dv20x2l, roksan xerxes tabriz vm750, jvc ql-y5f rigb at440, jvc ql-y3f vm750, lenco 75, technics sl150
Phono stages: cole lcr, benedict audio hothead
Digital: cyrus cd7, wiim mini x2, topping e30, jds labs el dac 2+
Amplification: nelson pass b1, nelson pass f5
Speakers: 15" fane aperiodic wardrobes
Cans: myryad z40, hifiman sundara + deva, fostex t50rp, sennheiser momentum on ear +over ear, b&w p5 and p7
Phono stages: cole lcr, benedict audio hothead
Digital: cyrus cd7, wiim mini x2, topping e30, jds labs el dac 2+
Amplification: nelson pass b1, nelson pass f5
Speakers: 15" fane aperiodic wardrobes
Cans: myryad z40, hifiman sundara + deva, fostex t50rp, sennheiser momentum on ear +over ear, b&w p5 and p7
- SteveTheShadow
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Re: Another DIY SS Amplifier with NVA Boards
The step drill is your friend for front panel work
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
- SteveTheShadow
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Re: Another DIY SS Amplifier with NVA Boards
Not stopping you. It's not set in stone yet.
Aluminium extruded enclosure would be the same as those that Naim use, could even make it a "chrome bumper" one with a crackle black finish.
On second thoughts, better not. Richard's got my address. He'd send the boys round.
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
Re: Another DIY SS Amplifier with NVA Boards
I'm following this thread with interest.
I was thinking of trying solid state again. Maplins used to sell a mosfet module many moons ago, and I noticed something very similar on Ebay the other day.
Don't know if they are "hi-fi" though. Anyone ever tried them ?
https://www.ebay.co.uk/itm/EBB-150-Mosf ... 51hWAaTJXg
I was thinking of trying solid state again. Maplins used to sell a mosfet module many moons ago, and I noticed something very similar on Ebay the other day.
Don't know if they are "hi-fi" though. Anyone ever tried them ?
https://www.ebay.co.uk/itm/EBB-150-Mosf ... 51hWAaTJXg
- SteveTheShadow
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Re: Another DIY SS Amplifier with NVA Boards
Never tried them.
Never soldered a transistor in my entire life.
Rest of the bits for the project are now ordered, so I ought to be underway by the end of the week.
Never soldered a transistor in my entire life.
Rest of the bits for the project are now ordered, so I ought to be underway by the end of the week.
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
- SteveTheShadow
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Re: Another DIY SS Amplifier with NVA Boards
Bits have arrived. Below is the proposed layout, which ensures that most of the wires will be kept as short as possible.
Look like I was spot-on with the box dimensions I worked out. The box itself is very well finished.
Amp can be built onto the eighth-inch thick bottom plate and then the box built up around it. Should make construction nice and easy.
Look like I was spot-on with the box dimensions I worked out. The box itself is very well finished.
Amp can be built onto the eighth-inch thick bottom plate and then the box built up around it. Should make construction nice and easy.
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
- SteveTheShadow
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Re: Another DIY SS Amplifier with NVA Boards
I also have an alternative layout that puts the transformer and power supply at the front and the boards at the rear. I may use that instead, but the general idea is the same.
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
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- Dr Bunsen Honeydew
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Re: Another DIY SS Amplifier with NVA Boards
I forgot to add that legally at anytime in the future these are disposed of or passed on they cannot be called NVA amplifiers legally. You have to give them your own name and not emphasise the nva connection. I do this for you two, not for future of the boxes.
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Re: Another DIY SS Amplifier with NVA Boards
Steve. Somehow, if you can lay the caps and bridge rectifiers out as per NVA you might find it easier and more logical to solder up and wire the rails..
I've never used one transformer with pos and neg wired secondary's to use two bridges and cap banks, so can't advise on wiring. Even better with two transformers and they're not silly money
I've never used one transformer with pos and neg wired secondary's to use two bridges and cap banks, so can't advise on wiring. Even better with two transformers and they're not silly money
Hanging on in quiet desperation is the English way...The time has gone, The song is over, Thought I'd something more to say...