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…
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…
Customer Reviews
"Great service as always" - NG. 1st Jan 2020
"Fast service even though it was close to Christmas , and great fully tested product .."- Sovtek 5881/6L6WC quartet`T.M..28th December,2019
It is common design practice overrunning output valves. It is done with all types . There are some amps that use EL34’s and run them way over 500 volts. This…
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…