Tag Archives | Service

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Mesa Boogie Bass 400+ Repair

Mesa Boogie Bass amp Repair

This mesa boogie bass amp repair had the highest power valve count I’ve seen. The amp uses no less than twelve 5881 6L6 valves! Like the recent fender amp repair this valve amp was blowing fuses. Also like the fender repair, the failure was down to a damaged power tube. Two in fact. Much is […]

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Ampeg-repair-svt-ii-bass-amp

Ampeg Repair – SVT pro ii

What a huge beast this Ampeg repair is! Weighing in at an incredibly heavy 32kg I wasn’t sure that my workbench would take the strain! It’s an SVT ii powered by 6 KT88 output valves meaning two massive transformers, owner for three mains and one for the output stage. When both must be capable of […]

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Trace-Elliot-repair-AH350-GP7

Trace Elliot GP7SM Repair

A recent Trace Elliot GP7SM Repair, a amp service actually. The owner brought the amp in for a check over before sale. This is a really beautiful Trace Elliot! This particular AH350 (from the early 90s) uses the Trace MOSFET output stage, with Lateral type audio FETs. These are expensive, but worth it – the […]

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Peavey Repair

Peavey Repair – 6505

Sadly I forgot to photograph the amp so here’s the stock Peavey repair image! I’m not the most djenty/hardcore kind of musician, but it’s hard not to admire the level of filth before feedback that the Peavey engineers have got out of this fiery monster. This amp is a 6505, which I believe is a […]

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Trace Elliot Repair

Trace Elliot Repair – GP7SM 200W

Trace Elliot Repair – GP7SM 200W This Trace Elliot repair is actually a service. My solid state service procedure involves the following steps: Cleaning of all pots and connectors Re-soldering dry or suspect joints Any preventative maintenance required Replacement of out of tolerance or defective components Output power test.   I’ve seen a couple of […]

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