Ampeg BA115 Bass Combo Amplifier Repair

Ampeg BA115 Bass Combo Amplifier Repair

| May 22, 2013 | 11 Comments

In this episode of The Repair Bench we are troubleshooting an Ampeg BA115 Bass Combo amplifier. This amp is part of Ampeg’s starter series and is specified to deliver 100W of power to a 15″ speaker and a small tweeter. It features a style selector with five basic tone options, three tone controls (Treble, Mid, […]

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From Our Mailbag: Repairing a Roland Cube 80XL

From Our Mailbag: Repairing a Roland Cube 80XL

| December 21, 2011 | 1 Comment

“Hi GKB, I know you are featuring work on the micro cube but wonder if you would have a thought regarding a problem I’m having with the COSM switch on my Roland Cube 80XL. The switch doubles as a tuner which works just fine, but after a bumpy ride to a gig, the amp model […]

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The Repair Bench: Kasino Natural Bass Amp

The Repair Bench: Kasino Natural Bass Amp

| August 21, 2011 | 1 Comment

In this episode of The Repair Bench we are troubleshooting a Kasino Natural bass amp from the early 1970s. The Kasino brand was made by Kustom Electronics, maker of Kustom Amplifiers. If you’re not familiar with them, the Kustom amps brand was famous for covering their amplifiers in “tuck and roll” style upholstery (Photo 1), […]

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The Repair Bench: Build Your Own Clone 5 Knob Compressor

The Repair Bench: Build Your Own Clone 5 Knob Compressor

| May 26, 2011 | 1 Comment

In this episode of The Repair Bench we are troubleshooting a clone of the famous Ross Gray Compressor called the 5 Knob Compressor and sold by Build Your Own Clone (BYOC). We received this pedal from a customer who had purchased it, already built, on eBay. Apparently it had never worked for the original buyer/builder, […]

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The Repair Bench: Roland Cube 100 Bass Amp

The Repair Bench: Roland Cube 100 Bass Amp

| April 15, 2011 | 5 Comments

Learning how to troubleshoot electronic circuits is one of the handiest skills to have if you are building or modifying amplifiers or effect pedals. At some point you’ll power-up a circuit and find that it doesn’t work, and then what? For this reason we write “The Repair Bench” section of Guitar Kit Builder about our […]

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The Repair Bench: Ibanez TS9 Tube Screamer

The Repair Bench: Ibanez TS9 Tube Screamer

| March 29, 2011 | 20 Comments

Learning how to troubleshoot electronic circuits is one of the handiest skills anyone can have if they are building or modifying amplifiers or effect pedals. At some point you’ll power-up a circuit and find that it doesn’t work, and then what? For this reason we write “The Repair Bench” section of Guitar Kit Builder about […]

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The Repair Bench: Carvin SX200 Guitar Amplifier

The Repair Bench: Carvin SX200 Guitar Amplifier

| March 24, 2011 | 3 Comments

Learning how to troubleshoot electronic circuits is one of the handiest skills anyone can have if they are building or modifying amplifiers or effect pedals. At some point you’ll power-up a circuit and find that it doesn’t work, and then what? For this reason we write “The Repair Bench” section of Guitar Kit Builder about […]

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The Repair Bench: Roland Micro Cube

The Repair Bench: Roland Micro Cube

| March 16, 2011 | 97 Comments

Learning how to troubleshoot electronic circuits is one of the handiest skills anyone can have if they are building or modifying amplifiers or effect pedals. At some point you’ll power-up a circuit and find that it doesn’t work, and then what? For this reason we write “The Repair Bench” section of Guitar Kit Builder about […]

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The Repair Bench: Marshall Valvestate 8200 Amplifier Head

The Repair Bench: Marshall Valvestate 8200 Amplifier Head

| May 30, 2010 | 11 Comments

INTRODUCING “THE REPAIR BENCH” Learning how to troubleshoot electronic circuits is one of the handiest skills anyone can have if they are building or modifying amplifiers or effect pedals. At some point you’ll power-up a circuit and find that it doesn’t work, and then what? For this reason we write “The Repair Bench” section of […]

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