This instalment of the Aurora Jupiter preamp is a little less exciting than I planned as there isn’t really much new to see as the GEQ daughterboard covers up the focal point and the boost board I etched myself to try out the circuit. Onto the boost. This is a slightly modded zw44 to have …
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 …
Aurora Jupiter Guitar Preamp Build Log: Part III Read More »
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 …
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 …
Just a brief update on a few store additions. First up we have a new Aurora PCB. This one is probably not going to stick around for long due to the nature of it. It is based on Merlin Blencowe’s Ultra High Gain Preamp from his Designing Tube Preamps for Guitar and Bass Book. It …
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 …
Aurora Audio Rack Project Enclosures Available Soon Read More »
This one took a little bit longer than I was hoping to get tested but the Aurora Power amp DIY PCB is now available to purchase. Quantities are limited as this is just left over stock from the prototyping but more will be coming soon. This board can be used to build a push pull …
The Aurora LND150 Effects Loop is the perfect companion to the Aurora Recording Preamp PCB or it could be used to add an effects loop to an older amplifier that doesn’t have one .
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 …
At Aurora Audio we have many new DIY Project PCBs coming in 2022. Here is a preview of what is currently being tested and will be available over the coming months. Push pull mono valve /tube guitar power amp. We designed this board to build a power amp at 20w using 2x6v6 but it is …
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 …
