A Marshall JCM900 Breaking Valves was the cause of this amp’s failure. It travels around a lot and it has the original 1990’s valve retainers on the output valves. The…

Fender Bassbreaker 007 Image

Quick Intro to the Fender Bassbreaker 007 The Fender Bassbreaker 007 is a cute little valve amp. There are two versions – a head and a combo. It has two…

Vox AC30/6 1964 Interior image

A brand New feature for amp techs and amp makers We have  a  brand new ” Website Trade Area” for amp techs, service folks and amp manufacturers. You can find…

AC30 vibrato image

Worldwide Payment Options We accept American Express, Mastercard and Visa worldwide. We also accept Paypal. European Specific Payment Options Austria and Germany- EPS, SOFORT Belgium – Bancontact The Netherlands –…

Sovtek 12AX7 WA WB WC image

I thought it worth the time De-Mystifying Sovtek 12AX7 WA WB WC Variants. Why are there three versions of the Sovtek 12AX7 and what use one versus the other? One common…

Marshall JCM900 Chassis image

A Marshall JCM900 100 Watt Combo  arrived in the workshop.  This version is the 4102  It was very poorly. The first issues seen were : 10 amp fuse in the plug!!…

Marshall JCM2000 DSL amp image

The early (1997-2003) Marshall JCM2000 DSL50, DSL100, TSL100 and TSL122 amps are often troubled by an unstable bias (drifting bias). These are nice amps and I have one myself This…

Here are Things learned about Valve Amps in 2018 . They are in no particular order. Perhaps some useful info about your amp. I thought I would share them before…

A friend has an ACOM 1000 amplifier. It is used on the HF bands( short wave bands) .  It uses one valve for the output and the valve is a…

Customer Reviews


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"New customer here. I want to say that I was blown away with the incredibly fast shipping! Now I can get my JCM 2000 DSL 100 performing the way it should with no bias worries much sooner that I thought. The fantastic price, wonderful illustrated mod instructions and unbelievable shipping speed is second to none. The whole experience was great and I would highly recommend valvetubeguitaramps.com for all of your amp needs!" - North American customer J.J. bought a Marshall Stable Bias kit reviewed 4th January 2021

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"Fast reliable service and good value!" UK customer bought Vox AC 30 CC2 valve kit and reviewed 14th January 2021

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