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Author Archive | rowan

Broken footswitch repair

Broken footswitch repair – MXR Carbon Copy

This broken footswitch repair was sent to me because the owner suspected that his pedal had the ESD problems that I’ve documented elsewhere.  Actually, the footswitch was broken by mechanical use. This is comparatively rare – MXR use quality ‘Alpha’ parts for their footswitch. The unit was soon fixed, and shipped back to its owner, […]

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Dyna Comp Repair

MXR Dyna Comp repair

The Dyna Comp is possibly the most famous of the compressors used on guitar. This Dyna Comp repair was similar in nature to the ESD fix that I’ve documented elsewhere in relation to the Carbon Copy pedals.  The issue is with the switching circuit – the FX does not switch in when the pedal is […]

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Peavey Valve King Repair

Peavey Valve King Repair – VK100

My customer brought this Peavey Valve King repair in to me before Christmas  to get an opinion on its state of repair. The amp was blowing fuses. The Valve King VK100 is a monster of an amp. Not fire breathing levels of gain like some Peaveys but a big and heavy brute with a classic sound. […]

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Carvin repair

Carvin repair – Nomad 

This Carvin repair was completed for Simmonds music in Grantham. They received the amp in part exchange. The amp would occasionally drop to very low volume, with no apparent reason. From the beginning it was obvious that the Carvin repair had been attempted by another tech in the amplifier’s past. The first valve stage had […]

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Egnater-repair-rebel30

Egnater Repair – Rebel30

This amp is a Rebel 30 by Egnater. At first, I had a bit of trouble with the Egnater repair but I’m pleased to say that I found a solution for the customer. The diagnosis itself didn’t prove a problem, the problem was simply the gain potentiometer itself. This is a dual ganged part (2 […]

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Marshall-jcm2000-repair

Marshall JCM 2000 Repair – TSL 100

Marshall JCM2000 repair I get quite a lot of the JCM2000 series in for repair – both DSL and TSL. I think it’s because they were so popular, rather than any endemic issues. This particular JCM2000 is a TSL100, the triple super lead model. I’m writing the blog post quite a while after the repair […]

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Marshall Repair JCM2000 DSL

Marshall Repair – JCM2000 DSL100

Marshall Repair This Marshall Repair was brought to me with one of those sneaky ‘hard to find’ problems. The amp was blowing fuses when the customer was playing it. He’d taken the amp to another repairer who hadn’t found any problems. Unfortunately the amp continued to blow fuses. Guitar amplifier repairs of this kind often […]

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Laney Repair

Laney Repair – VC50

Laney Repair This Laney Repair was a mixed bag of several issues! The amp is a VC50 – 5 12AX7 valves and 2 6L6s in the output. This particular specimen has a strange an whine present whenever channel A’s spring reverb was used, also a faulty gain control on channel A, an intermittently working footswitch […]

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