Constant Current Source. Check internet. It's also the acronym of Collective Consciousness Society, a big band with Alexis Corner on vocals, who made some notable albums in the 1970s. Try their debut:

The AJCCS is of course an OTL amp. Those are the mains transformers, one for the heater and one for the high voltage. A single mains transformer can be custom made (and is on order), less space and possible hum problems but higher cost. May be available out there as well, secondary 6,3V and 125V AC.

As a few people have messaged me and shown interest in the Audiotailor CCS amp, I'd like to explain the background of the project in a few words. After living with and appreciating the original Audiotailor Jade for quite a few years, we realized there was a potential in the basic design that...

Well, you seem to have built a mighty fine adapter, your impression of the balanced sound from the Audiotailor Jade certainly points in that direction. The most important thing with DIY is having fun, trying new solutions and enjoying the results.

Hi Joe, good to have you back in this thread! We all look forward to your next projects, whether new creations or expanded versions of Audiotailor Jade. I know you have many exciting ideas that are waiting to be realized. If you pick good acoustic recordings of voices and instruments in any...

A NEW TAKE ON AUDIOTAILOR JADE For quite a few years, I’ve had the idea of developing/modernising the original Audiotailor Jade circuit, just because it’s such a good and enjoyable amp. A deceptively simple yet very clever design making the most of the few components involved. The man behind...

That's correct. And it doesn't matter in which jack you connect the TRS 1/4" plugs, the only thing is absolute phase changes when you switch output between them. Which might be interesting to check for those who are so inclined.

It's not so easy to use existing adapters. You need a Y-split, or even better - and simpler - a braided balanced cable where you can just connect the four leads to a four-pin XLR (or whichever plug/jack you have, Pentaconn/TRRS 3,5mm etc) according to the sketch below. Normal connection for...

An unusual tube combination that I haven't tried before. Initial impressions are quite positive. This is the first 6AS7GA that I've ever tried, the smallest type in the 6AS7G/6080 family. Its sonic reputation is far from illustrious, but to my ears it sounds fine. The small T12 bulb makes it...

This is a living legend of a product, kudos to the man who invented it (forgot his name). Gilbert Briggs and Wharfedale made several groundbreaking inventions, including the metal blade cone suspension.

Shipping to US is OK. PM me for details.

Great! Ordered and on its way.

Thanks, but there's a lot of hassle with VAT and custom fees after Brexit, EU is preferable.

Anyone know where original Sennheiser head band pad can be bought in EU? Bought a Geekria but it won't lock to the headband.

Balanced discussion here: https://www.head-fi.org/threads/is-the-jade-really-a-balanced-amp.457047/ I only listen in "balanced" mode, to my ears it sounds better with bigger soundstage, more details in space and superior dynamics. As you get twice the output power I prefer driver tubes with...