One of our nice customers built a 60’s Vox AC30 clone. He built whole thing including the cabinet and covering with Tolex. I have a lot of respect for his ability to tackle everything from wiring to carpentry. and the patience and determination to work on this project. There are a lot of pictures showing the stpes. Note that this was intended as a reocrod fo the project and NOT a step by step instruction
Here is a classic example of damage done in an amp when valves are left in the amp beyond their useful life
Vox AC30 Birch Stolec 1970 Here is a summary of the work done to restore another Vox AC30 Another Birch Stolec 1970. Background: When Jennings Musical Instruments ceased operations, the assets were bought by an organization called Birch Stolec and they created the company Vox Sound LTD. This is a rare model. It was only manufactured for a number of months using the Jennings Musical Instruments design. It was replaced with a PCB version which
A lovely 1964 Vox AC30/6 came along as it was felling a bit poorly. The amp sounded- well- just not like an AC30 should. The vibrator / tremolo pedal had disappeared in the mists of time. The amp had been recovered in the proper basketweave Tolex and had a new grill cloth so it looked the part. The exact model is the Vox AC30/6 and while not a Top Boost model it is the “Treble”
The phase splitter valve while it is a pre-amp type valve is really not part of the pre-amp chain at all. It is actually part of the output stage. When an amp has two or more valves then it operates in a mode called push pull. Its job is to invert the signal so that one of your two output valves is driven at any one time. This is a an oversimplified description but I
Phase Splitter Valves they do influence your amp tone Read More »
Having done a long term test on a JJ Electronic 6L6, and saw that the cathode current remained rock solid over over a period of 48 hours the next valve to be tested was the EL84. The reason for running the valves from new over a period of many hours was to see if burn in provided any advantage when doing matching. EL84’s are used in many amps such as the Fender Blues Jr, LazyZ
EL84 To Burn in or not to burn in that is the question Read More »
