A frequent problem with the Blues Junior is failure of the tube circuit board. The EL84 run hot and this leads to the pads lifting away from the boards and due t stress the tracks break. We have designed our own replacement circuit board that features a durable double-sided construction and generous pad sizes to resist deterioration. Additionally it sports bias current test points to make to easier to check your tubes after a replacement.
These can be found on eBay for £24.95 inc shipping