Posted on Leave a comment

New Aurora Audio PCB Arrivals

Just a quick one. To showcase a few new Aurora Audio PCB. Merlin Blencowes Ultra High Gain preamp PCB is now back in stock with some very minor changes. First the mid control wiring has been corrected (it was reversed on the original) and the silkscreen has been adjusted ever so slightly. Other than that…

Read more

Posted on Leave a comment

Aurora Jupiter Guitar Preamp Build Log: Part V: The final frontier!

DI out 2

This one took a little longer than I wanted but hey life gets in the way! A very small final step in the completion of the Jupiter preamp. The DI (dry) guitar output. Essentially what is happening is the input of the DI board is tapped directly from the input jack as can be seen…

Read more

Posted on Leave a comment

New PCBs available in the store

Temp Jupiter Picture

Just a quick update following on from the Jupiter preamp build logs. The Jupiter Preamp PCB is now available to purchase this is based on the lead channel of the legendary SLO and demos will be following shortly. Jupiter Preamp PCB This Saturn PCB Set is to build a 2ch full amp version of the…

Read more

Posted on Leave a comment

Aurora Jupiter Guitar Preamp Build Log: Part III

This is the one where it actually starts to get interesting for most people. It LIVES! After some initial voltage testing and a shocking first start-up where a high gain preamp could only produce shimmering cleans we finally start moving. The clean issue above was due to the shielded cable on the gain pot shorting…

Read more

Posted on Leave a comment

Aurora Jupiter Guitar Preamp Build Log: Part II

Jupiter 12ax7/6n2p wiring

This second installation of the Aurora Jupiter Preamp build log is just a brief one! The main part is that the filament wiring has been done. It is much easier to remove the bracket from the chassis to do this. I opted to experiment a little this time and used a Dpdt switch to be…

Read more

Posted on Leave a comment

Aurora Jupiter Guitar Preamp Build Log: Part I

Jupiter Prea Build Log Front 1

This is something that I have been meaning to get around to doing for a while as this board is the replacement for the original Single Channel valve preamp PCB. Not only that this is testing the Rack Preamp Chassis fit. I had a day off work today so I got cracking on this. So…

Read more

Posted on Leave a comment

Aurora Audio Rack Project Enclosures Available Soon

Rack Enclosure Slideshow

In the coming months these will be available to order with a short wait time as they will be ordered and shipped as required. The finish is brushed black anodised aluminium with laser etched graphics. Initially these will be available for the soon to be released Jupiter Preamp PCB but are also suitable for use…

Read more

Posted on Leave a comment

New Aurora PCB’s, A name change and a sale!

Saturn Amp PCB Preview

First of all the name and URL of this site will be changing slightly to Aurora Amps in the coming weeks. The new URL will be confirmed soon. Otherwise it has been a busy start to the year at Aurora. Countless hours have been put into designing, tweaking and testing new and revised designs. In…

Read more

Posted on Leave a comment

DIY 12AX7 to 6N2P-EV converter

Aurora Audio 12ax7 to 6n2p converter

For the last 12 months or so I have moved to using russian 6n2p-ev valves due to stock issues and price hikes. To use these valves in normal amps you either have to rewire the filament/heater supply or as I have done here make some converters. It’s an extremely easy project that will only take…

Read more