Basie SRPP And Basie Mk2 Tube Pre-Amplifier DIY

The Consonance Basie Pre-amplifier kits were originally available from Diy HiFi Supply. The Mk1 was a SRPP based unit with a cathode follower output stage that could be modified to use other tubes. In my original build I eventually by-passed the cathode follower and used 2 x Mullard E80CC driver tubes making it an Anode follower.

Basie SRPP And Basie Mk2 Preamp

Billie Ladyday 300B SET Power Amplifier DIY

The Consonance Billie 300B SET amplifier kit was originally available from Diy HiFi Supply. This was a dual mono 300B single ended tube power amplifer with many upgrades and possibilities.

I upgraded this unit over a period of 5 years to incorporate the newer Ladyday 300B features such as the WE91 power supply, Ultrapath caps, MU driver stage and grid chokes. Below are the original various pdf files such as build reviews, tweaks and upgrades.

** I have included the circuits which would allow you to build this amp from scratch build as the kit is no longer available **


Billie Ladyday 300B SET Power Amplifier

Easy Super Clamp Mains Filter Clone DIY

It is possible to make a SuperClamp plug like the ones Russ Andrews sells for £20 using a standard UK mains plug and a few parts. Total cost is a few pounds. Simply take any UK mains plug, the MK ones are better since they have more space inside them but I managed with a Volex one. Inside the plug you need to connect a varistor across Live and Neutral. If there is enough space you should use 2 in parallel. That is it !! You can take this a step further and connect a varistor across Live and Earth and one between Neutral and Earth. They are very low capacitance like a typical Y-Class Cap and act as such here until clamping a spike. Blank the cable entry with a rubber grommet or some sealant if you wish.


In Use

Easy Super Clamp Mains Filter

Audio HiFi Chassis Mains Filter DIY

An alternative to the full DIY mains filter build in the previous article is to use a standard chassis filter make by either Roxberg or Schaffner. These are off the shelf parts that come assembled in a metal box with input and output tags for L, N,E. They can be selected based on the current rating you require and have various choke sizes.

Choose a filter with a large inductance choke (10mH) for a source component filter like CD players, DAC, pre-amp or small integrated amplifiers for example. Use a smaller inductance (higher current rating such as 10A) for large dedicated power amp filtering. A mid range inductance (5mH) is fine for a computer based filter or more general audio use. The chassis filters can be bought from RS components, CPC and even on ebay occasionally.

Audio HiFi Mains Filter

Audio Hi-Fi Mains Filter DIY

This is a full mains filter build that can be made with or without the chokes if you wish. The first picture shows the unit I made in a simple ABS case. This filter is a complete DIY solution where you make the circuit yourself, either on a PCB, vero-board or tag strip.

The sonic benefits of any mains filter is subjective at the best of times. Some people swear by them and others dislike them. I have always preferred my system with some kind of filtering and cannot see the purpose of using high grade audio mains leads without a filter circuit before them. The filter isolates the audio grade mains lead from the yards of twin and earth grey cable under the plaster and the miles of cable to the local sub station on your phase.

Audio Hi-Fi Mains Filter

Lossless Audio Checker for Linux and Windows

auCDtect is a useful too used to check the the validity of lossless files. The regular tar packaged version does not work without tweaking by installing old compat libs which are not always available on some Linux systems.

Here are static compiled binaries for both Linux and Windows based systems. On Linux Copy it to /usr/bin and it should run fine. So far it has run on all versions of ubuntu from 10.xx upwards. auCDtect is a command line driven tool. For those that prefer a GUI based tool you can use LAC (Lossless Audio Checker).

** Linux and Windows Downloads Attached **


auCDtect Checker for Linux


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