More NVA Board Based Stuff

[Ray P]

Looking shoddy, Steve.

I have some Maplin amplifier modules so I might pinch your build approach...

[Cressy Snr]

Just a bit of rearranging of the equipment and it all looks a lot better:

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I’m over on the dark side until the Autumn.

[Cressy Snr]

Spent a couple of days rearranging the inside, starting with this 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.

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All wired up:

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Music now arises out of total blackness as they say.

[Cressy Snr]

Modded the front panel this afternoon, so that it follows more closely, the aesthetics of the valve amp.

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[Cressy Snr]

More cosmetics: It looks more like the valve amp than the valve amp.

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I also changed the 300VA - 2x30V mains transformer to a 300VA - 2x25V job as I want this amp to last. Ultimate power will be down but it’s not really that big of a problem in my tiny living room.

I also made up some new speaker cables:

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These use 12 cores of insulated 0.6mm solid core wire per leg and perform very nicely.