Collection: Tube Amp Kits

Secret Chord Analogue can help you upgrade to a high-quality tube amplifier without you having to sell your soul at the crossroads.

You can experience incredible sound, and incredible value for money, by building your own tube amplifier from one of the meticulously designed DIY kits we sell.

Using a kit to build your own tube amp is easier than you might think. You don’t need any experience with electronics, or with a soldering iron, and we provide expert support every step of the way.

There are two kit manufacturers we highly recommend: Australia’s own RedRoo and Elekit, Japan’s finest.

Both manufacturers use A-grade components and their kits come with everything you need, including crystal clear instructions – you’d have to try extremely hard to make a mistake.

As well as incredible sound and value for money, these kits come with a special bonus: the satisfaction of having built it yourself! You’ll be glowing like one of the tubes on your amp for years to come.
Output transformer upgrade service for Elekit TU-8850

Output transformer upgrade service for Elekit TU-8850

Supply and installation service for two (2) Lundahl LL3727 output transformers for Elekit TU8850....
Regular price $990.00
Regular price Sale price $990.00
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Red Roo Rockstar Guitar Amp - An Amp Camp experience

Red Roo Rockstar Guitar Amp - An Amp Camp experience

The Red Roo Rockstar guitar amp kit is a new and innovative design by legendary tube amp designer...
Regular price From $1,490.00
Regular price Sale price From $1,490.00
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Eutectic Solder (20gms)

Eutectic Solder (20gms)

Eutectic Solder (63/37 Sn/Pb) is the ideal solder for audio kit construction, especially on PCBs ...
Regular price $24.95
Regular price Sale price $24.95
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Output transformer (OPT) upgrade for Elekit TU-8900

Output transformer (OPT) upgrade for Elekit TU-8900

The quality of a tube amplifier’s OPTs is extremely important, especially so for single-ended amp...
Regular price From $1,595.00
Regular price Sale price From $1,595.00
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100% satisfied with the sound

I received both kits on time, and built the amplifier straight away.
The instructions were easy to follow, and not too verbose (10 out of 10). I am a Technical Author, and I could not fault them.
The quality of the kit components and PCBs was excellent. Beautiful design, and forethought. It is the best kit that I have seen. 100% satisfied with the sound - so full.

Ross Field Alice Springs

I lose three hours getting lost in the sound

Hooked theTU-8500 up to my NAD 326bee, by passing its preamp, and now whenever I put music on I lose three hours getting lost in the sound.
It’s clear, punchy and has a great soundstage. Very enjoyable to listen to.
With the phono you can really hear how every record is mixed & mastered differently.

Arne Heeres Paddington

The soothing output of the tubes

The TU-8200 is running beautifully; use it all the time into my Krix KDX Main speakers and it sounds wonderful. I am a reel to reel and Nakamichi cassette deck man. I run a Tascam OB44 and an Otari MX5050 MkIII, along with Nakamichi ZX-9, two Nakamichi 680ZX & #8217s , a Nakamichi 670ZX with High-Com plus two Pioneer CT-91A’s. These analogue sources sound fantastic through the TU-8200; 8 watts in ultra linear mode is more than enough for my listening room. As an ex broadcast engineer I just like the whole tape / recording / playback experience using CD and digital files as the sources. The analogue tape sound (when well recorded) and the soothing output of the tubes makes digital sources sound much better to me.

David King Toowoomba

I am so glad I bought the kit

I have the TU-8200R operational. Powered it up this morning after assembling it over the last several days.
My first impressions - in the 20 years of being an audiophile, I have not listened to music of such warmth, separation, soundstage, the list goes on and on.

Indrajit Chakrabarty Sydney