https://www.hificollective.co.uk/
Hificollective One stop for hifi kits, components hi-fi diyers Build you own valve amps from scratch, dabble in speaker design, a component tweaker or a true...
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https://www.spotfire.com.au/
Red Roo valve amplifier kits and valve preamp kits use quality components, sound terrific, and don't cost an arm and a leg.
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