Hayden HGT-A40

Best valves for Hayden HGT-A40 amplifiers

The Hayden HGT-A40 amplifier in both head and combo versions uses:

2 x ECC83 preamp valves (also called 12AX7).
1 x Balanced ECC83 for the phase inverter (in position V3).
2 x EL34 matched power valves/power tubes.

Note: The balanced ECC83 goes in the V3 position which is the preamp valve furthest from your input jack.

A brand new set of valves will get your amp sounding better than ever.

We always recommend JJ valves for this amplifier. This is because they guarantee you get awesome tone and long life and they don’t cost a fortune.

Remember, JJ is one of only five manufacturers in the world. So don’t pay higher prices for valves from the same factory that have simply been rebranded by other companies.

Order your valves below and hear the difference

So restore the tone, the power and the sparkle to your guitar amplifier. Grab a brand new set of valves today.

All of our kits are carefully selected, fully tested, digitally graded, balanced and matched.
A significant upgrade in quality compared with stock valves.
We offer a variety of shipping options with full tracking and insurance so you can order with confidence.
We have 30 years of experience so you know you are in safe hands.
International shipping – we post all over the world every single day.

Replace the valves on your Hayden HGT-A40 amp

If you have any queries please get in touch. We have over 30 years of experience so one of our team will always be happy to help and advise.

If you haven’t changed your valves before, please take a look at our FAQ section before you contact us. Here we answer the most popular questions we get asked each week.

If you want to know what your shipping options are, simply add the product to the basket and when you get to the check out it will show you delivery costs, options and delivery times.

About this amp

The HGT-A40 has gained a loyal following. It is a lovely 40 watt amplifier essentially based around three channels.

This affords a great deal of control and flexibility but it’s important to understand how the three channels work. Like Mesa amps, this takes a bit of thinking about, but it’s worth the effort because this amp delivers it’s own very special tones.

The front panel knobs are labelled as ‘Clean’ and, ‘Gain One and Two’.

Meanwhile, the three channels are called One, Two and Three, with channel selection buttons for ‘One and Two’, and ‘Two and Three’. Once you’ve got your head round that it all starts to make sense.

‘Gain One’ controls the gain in channel Two, selected by pushing button ‘One and Two’ on the front panel.

“Gain Two “controls the gain in channel Three, selected by pushing ‘Two and Three’.

Hayden say that channel Three is cascaded from channel Two (hence the ‘Two and Three’ designation), yet “Gain one” – which, as mentioned above works in channel Two – has no effect when you’re in channel three.

I know, it’s not the sort of thing you can speed read.

It’s probably easier to think in terms of ‘Clean’, ‘Crunch’ and ‘Lead’.

The important thing to remember is that the crunch and lead channels have their own dedicated gain and master volume controls.

As mentioned earlier, the Hayden has a unique tone that is neither Fender or Marshall or Vox and that appeals to a lot of guitarists out there.