Build in progress

[Bob S]

Trying a different layout. Less wire.
A lot of the connections are not soldered yet - this is still work in progress.
I like the idea of point to point, but using a traditional pre-amp board seems more practical. This is my compromise.
Will have a VVR, parallel V1 & Presonance.
I'll post the results when I fire her up - next weekend hopefully.
This one's called Bitch...

[M Fowler]

Bob great looking split load cathode bias Liverpool. The whole design makes a lot of sense.

Mark

[jjman]

I've never seen this approach. Is there a name for it? Point-to-turret? Turret to point? TTT Tube-to-turret?

[LeftyStrat]

I will be really interested in seeing the progress on this. Looks great.

[Colossal]

Just saw this thread. Looks great Bob! Going to be a high gain machine for sure! Nice hybrid layout. Do you think you might run into any phase issues with those output signal caps running perpendicular. You'll like the Presonance circuit.

[Bob S]

The effects of the orientation of the caps is a concern - I wanted to try it this way first for the hell of it.
I'd like to play with the split load too when I get done.
I really want to get the noise floor as low as possible while keeping the high gain goodness the Liverpool delivers.
Stable, on the edge, low noise floor & repeatable without having to dink with each one.
Not asking for much

[Tillydog]

...

This one's called Bitch...

It will be if you ever need to pull the board

Are those green/grey wires the heater supply? You might want to twist them together & route them a bit further away from the main board...

Just my 0.02p

Andy

[surfsup]

Interesting approach. Is this a "gothic rink" type of layout? I was drawing one up for my own challenge/benefit for a different amp and ultimately stopped because basically being new I didn't know if it was worth the hassle to do the work of a layout like this not understanding at the time what leads affect what...and I still don't. Looking forward to your progress.

[M Fowler]

Never hold back.

Pickup the drill and start punching holes. New ways of building circuits is what makes amp building fun.

Mark

[LeftyStrat]

Never hold back.

Pickup the drill and start punching holes. New ways of building circuits is what makes amp building fun.

Mark

+10

[surfsup]

Yea but it was my first venture in my own layout and I didn't want a squealing pig on my hands. And in retrospect I think I did the right thing building something more conventional (the X10 clone with Solen fastcaps).

At the time, I guess I kept reading how lead dress was pivotal to good sounding amps (and it is) and maybe got scared, I just didn't feel like I knew enough then. Probably still don't. For the preamp I'm good. The power amp area, NFB lead issues, resonance/cut/presonance layout, etc I'm still not that sure about what leads are more sensitive.

[dorrisant]

Nice looking build! Love it that you are pushing the envelope...

[NickC]

Cool and innovative!

[RJ Guitars]

Agreed - cool and innovative. I am always inspired by fresh ideas and a new look at things. Any hope you can bring toward taking some of the pain out of taming these beats will be well received.

[Structo]

Coming along nicely Bob.

That yellow board is pretty!

I'll be interested in what you think about the noise level with this build.

Keep us updated!