Valve RIAA preamp build. Single reused case (was a Skytec 150wpc Power Amp) will have new front and rear panels and top cover will be resprayed. Transformer was a couple of quid off a car boot. Power supply is on Veroboard, its been a while but still surprisingly easy to use. Centre screen plate separates PSU from main amp board. Phono inputs, BNC outputs. Particular attention will be placed on grounding, will also use a screened mains cable.
An ebay company listed black powder coated aluminium sheets and cut to size at no extra cost. Only trouble is they arrived in plain anodised ali, NOT black powder coated
More pics added, I managed to build this entire thing, wire it all up, switch it on, and it all worked first time ! Rather amazed and proud of myself ! Note the switch on protection system
285vdc HT and 12.3VDC heaters, used a LM338 to regulate the 12v line, adjustable between 11.5 and 13.5vdc.