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No problem Mr Recall.
If you haven't got much experience with Elektrickery I think building a Valve amp would be too risky TBH. I am Mr H+S! But alls not lost....Howsabout a DIY Solid State amp kit? Back in 1969 John Lindsey Hood came out with a Class A biased Transistor amp design that some folk still rave about, I admit I've never knowingly heard one meself but the 'JLH amp' crops up numerous times in HiFi conversations. Being a SS amp it'll have lower HT rails and could be a sfer bet than diving in and 'doing-a-valve-amp' straight away.
A quick eBay search throws up -> http://www.ebay.co.uk/itm/2-X-MINI-JLH-HOOD-1969-CLASS-A-3W-AUDIO-POWER-AMPLIFIER-KIT-/151388877083?pt=LH_DefaultDomain_0&hash=item233f7af11b
Simple and dirt cheap to get you started. It wont be the worlds greatest amp, but its a cheap project!
Hey, thanks for the comprehensive reply. No I've not got particularly deep pockets, it was originally seeing the Chinese Douk audio DIY kits on ebay that got me thinking about this, they're £200-£300. Crap, I imagine.
I've not got a HUGE amount of electrical experience and none with high voltage rails.
So this would appear to be a bad idea for me? I'm not after something particularly powerful or complex, but I would like to learn how these things work and I like making stuff.
I do currently own a Trace Elliot VA350 bass amp, very similar to this one. In fact, I got in contact with the chap who did that overhaul diary to give mine a service. A very nice man he is, too but he lives up in Norfolk so I was unable to 'sit in' and watch him fix it whilst I asked stupid questions, which I would've liked to do.
I'd love to learn more about this stuff and I like tinkering, but I appreciate I could get killed in the face so would appreciate advice on how to learn and build without dying. I will do some more googling!