More NVA board shenanigans.

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SteveTheShadow
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More NVA board shenanigans.

Unread post by SteveTheShadow »

I’ve just completed another NVA based project using another pair of RD’s boards:
IMG_0415.jpeg
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I bent up 1.5mm aluminium, added filtered power inlet, sockets on the rear and mounted a 30-0-30V, 300VA toroidal transformer.
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These users thanked the author SteveTheShadow for the post (total 3):
Lindsayt (Wed May 08, 2024 9:28 pm) • antonio66 (Thu May 09, 2024 5:02 am) • Latteman (Thu May 09, 2024 10:32 pm)
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SteveTheShadow
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Re: More NVA board shenanigans.

Unread post by SteveTheShadow »

Power supply under construction, with a pair of 10,000uF SuperTech, slit-foil capacitors:
IMG_0418.jpeg
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Boards mounted, ground bus installed and power transistors bolted to thick alloy plate, which makes use of the case as a heatsink.
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Lindsayt (Wed May 08, 2024 9:28 pm)
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SteveTheShadow
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Re: More NVA board shenanigans.

Unread post by SteveTheShadow »

Wiring completed:
IMG_0421.jpeg
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Inputs are cap-coupled using green Nichicon Muse bipolar electrolytics and the outputs have the traditional 10 Ohm/100nF Zobel network across them.
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SteveTheShadow
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Re: More NVA board shenanigans.

Unread post by SteveTheShadow »

Perforated aluminium top-plate fitted
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And in the system and playing music:
IMG_0425.jpeg
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Niiice. :)
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Fretless (Wed May 08, 2024 9:45 pm) • slinger (Wed May 08, 2024 10:21 pm) • Firebug1 (Fri May 10, 2024 6:13 am)
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Re: More NVA board shenanigans.

Unread post by antonio66 »

Your set-up looks great, nice work.

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Re: More NVA board shenanigans.

Unread post by Latteman »

Love the name 👍🏼
Analogue Source -
Denon DP47f; AT-VM95SH- RigB 9
GL-59; ARB uni pivot; AT- Signet mc
Nva phono mm/mc
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- Argon Pi4 v2; IfI iUSB 3.0, Ifi Neo idsd Dac;
Tidal / Radio Paradise
Amplification Nva 300va mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

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Firebug1
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Re: More NVA board shenanigans.

Unread post by Firebug1 »

Nice work!
Rega by Michael Lim\Teac\ASR\NVA\
SA Mantra30\Audeze LCD-2 closed.
...the Gods you worship are steel, at the altar of rock 'n' roll you kneel...

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SteveTheShadow
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Re: More NVA board shenanigans.

Unread post by SteveTheShadow »

Thanks guys. :)
Spent a couple of days rearranging the inside, starting with this adjustable sub-assembly, intended to allow the volume and selector switch to be moved to the rear of the case. There had been a slight hum, caused by my rather silly oversight of putting the mains transformer too near the input selector and volume control. :oops:
IMG_0427.jpeg
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All wired up:
IMG_0428.jpeg
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Music now arises out of total blackness as they say. :)
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Latteman (Sun May 12, 2024 5:54 pm)
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)

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SteveTheShadow
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Re: More NVA board shenanigans.

Unread post by SteveTheShadow »

Latteman wrote: Thu May 09, 2024 10:31 pm Love the name 👍🏼
The name is a bit of an homage to Richard, who would probably not have been best pleased at me using coupling caps on the inputs and a Zobel network on the speaker outputs of his boards ;)
These users thanked the author SteveTheShadow for the post (total 2):
Latteman (Fri May 10, 2024 10:13 pm) • slinger (Tue May 14, 2024 3:58 pm)
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)

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Latteman
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Re: More NVA board shenanigans.

Unread post by Latteman »

What u using as a phono stage as the other was integrated ?
Analogue Source -
Denon DP47f; AT-VM95SH- RigB 9
GL-59; ARB uni pivot; AT- Signet mc
Nva phono mm/mc
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- Argon Pi4 v2; IfI iUSB 3.0, Ifi Neo idsd Dac;
Tidal / Radio Paradise
Amplification Nva 300va mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

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