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!!…
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…
Here are a few things to watch out for when buying second hand valve amps. Valves are very old technology and so valve amps inherit the unreliability of old tech….
While we do our day to day the day to day work, we find some interesting useful websites and some we just like.. I thought I would be brief and…
This post has nothing to do with valves or tubes but it is how to update your keyboard or midi player that currently has a floppy disk drive ( remember…
Have you ever wondered why valves wear out or why they dont last as long as solid state stuff? Why do the big amp manufacturers give you three years warranty…
We have now upgraded all our JJ EL34 valve kits. Our kits now include the JJ EL34 II. The reason? The JJ standard EL34 does not sound nearly as good…
Customer Reviews
"Fantastic service! Early really helpful and knowledgeable. Tubes relieved very quickly as well! Thank you so much!" - A.L. 14th Nov 2019
"The valves were very well matched , arrived quickly and packaging was excellent. Great service."- A.J. 10th November, 2019
The valve/tube world looks like it will see some interesting times ahead in 2020. Here is one thing that may impact Valve Tube Supplies in 2020.One of the big…
Many amps have a valve rectifier valve. Typical types are EZ81, 5Y3, GZ34/5AR4 and 5U4. There are variations on the letters at the end of the part number but the…