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Integrated Preamplifier [message #71016]

Tue, 17 January 2012 13:48

gofar99
Messages: 1950
Registered: May 2010
Location: Southern Arizona

Illuminati (5th Degree)

Hi Everyone, My latest creation an integrated tube preamplifier. It uses only tubes in the active circuitry but has a digital remote control volume (resistor switched by relays) and source selection. Full phono preamp (like the Groove) and allows for passive or active line stage with a gain of 15 db. Still breaking in, but sounds lovely. Smile

It is not a simple project, although a good diyer could do it. Care in layout and wiring technique is important. I'll post a schematic when I get one cleaned up. BTW the PS uses 1500uf of 500VDC caps, heaters another 15,000 more and about 30uf of polys. Rolling Eyes

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Attachment: Pre inisde with covers.jpg
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Attachment: Pre In system.jpg
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Good Listening
Bruce

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[Message index]

		Integrated Preamplifier By: gofar99 on Tue, 17 January 2012 13:48
		Re: Integrated Preamplifier By: Wayne Parham on Tue, 17 January 2012 14:16
		Re: Integrated Preamplifier By: gofar99 on Tue, 17 January 2012 14:33

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