Hoppe's Brain

DIY circuit board kits for Adcom and DIY Amplifiers

	John Acosta on Hoppe’s Brain is no long…
	Johnie Smith on ADCOM GFP-750 upgrade
	brettbashore on A Tour of a Hoppe’s Brai…
	Frank Fisher on Hoppe’s Brain Coronaviru…
	hoppesbrain on Yet another variation of the A…

	John Acosta on Hoppe’s Brain is no long…
	Johnie Smith on ADCOM GFP-750 upgrade
	brettbashore on A Tour of a Hoppe’s Brai…
	Frank Fisher on Hoppe’s Brain Coronaviru…
	hoppesbrain on Yet another variation of the A…