my first attempt

[gaffer]

This will be my first attempt, on build anything with a tube in it! I hope to build a 12AX7 Valve Preamp Kit and a 5751 SRPP / EL84 (6BQ5) Push-Pull Tube Amplifier. If someone could put me on the right track, I cannot find any up to date info on these units. I am looking for a parts list, art work, and wiring circuit for these units.
If anyone has any suggestions on what I should build given these specs, that would be great! In the meantime, I'll keep searching the site for more ideas.

Thanks in advance!

[wakibaki]

12AX7 Tube (valve) Preamplifier Kit

w

[Glowbug]

Any particular reason you settled on the 12AX7? That's a very high-gain tube...

[Miles Prower]

Originally Posted by Glowbug

Any particular reason you settled on the 12AX7? That's a very high-gain tube...

The preamp includes lots of gNFB, and that requires the open loop gain. Still, the 12AX7 doesn't have much drive capability, and so you can't use it with excessively long cable runs.

[Joshua_G]

I'd also suggest that 12AX7 isn't the preferred choice for a preamp.

[gaffer]

A friend suggested having a looking for is a valve per amp and power amp. I would like to listen to my music through a valve amp etc.

Plus I would like to building the units my self ?

[Joshua_G]

Originally Posted by gaffer

A friend suggested having a looking for is a valve per amp and power amp. I would like to listen to my music through a valve amp etc.

Plus I would like to building the units my self ?

I can only encourage you to build yourself tube pre amp and power amp.
Only, there are better choices than a pre amp based on 12AX7. There are kits which are based on different tubes. If you don't absolutely need a kit and can build from a scratch, there are even better choices.

[gaffer]

What would be advice, can suggest the design with various tubes that are available to me. I would expect there to be a fairly good reason why the designer chose specific tubes for specific applications?

[Joshua_G]

Originally Posted by gaffer

What would be advice, can suggest the design with various tubes that are available to me. I would expect there to be a fairly good reason why the designer chose specific tubes for specific applications?

Not all loudspeakers sound equal, though all were designed.
Not all amps sound equal, though all were designed.

Are you looking for a kit only, or would you consider building from a scratch?

[gaffer]

I don’t mind the extra work and time, building from scratch and I can save money on materials if you careful shopping around for the right parts etc, no doubt but it would be the assembly of the units that would be the draw back for me, in build my own units from scratch I would not get the step by step assembly to following or wiring diagrams. With a kit I hope I would get step by step assembly and diagrams to follow etc?