Marshall JTM ST20

Best valves for Marshall JTM20 amplifier

The Marshall JTM20C (combo) and JTM20H (head) amplifier uses:

• 2 x ECC83 preamp valves (also called 12AX7).
• 1 x Balanced ECC83 for the phase inverter (in position V3).
• 2 x 5881 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. Treat yourself to 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 Marshall JTM ST20 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 checkout it will show you delivery costs, options and delivery times.

About the amp

The first JTM amp created a legendary sound that inspired generations of musicians. In honour of that, the ST20C brings the iconic 60’s tone that initially launched Marshall to the present day, in a more compact format.

Whether you’re at home, in the studio, or on the big stage – the ST20C can adapt to bring exceptional tone to any situation with built-in power reduction technology, enabling players to switch between 20W and 5W.

Tubes for sale for Marshall JTM20C and JTM20H   

Order your new tubes today and get your amp sounding better than ever.