The original Moog 905 Reverberation Unit design dates back to the late 1960’s and is a simple four transistor circuit that drives a traditional Gibbs (then Accutronics) Spring Reverb Tank actually mounted inside the module! It is a medium delay time (1.75 to 3s). With just one control potentiometer for wet/dry MIX, I am sure […]
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Introduction I bought a used Yamaha SPX900 multi-effects unit in December 2021 to complete the FX rack for my main analog console, the Soundcraft 22MTK which has five AUX sends. The plan is to refurbish the SPX, and use it for delays with pitch shifting and the Symphonic preset. Launched in 1988 (at over£700) the […]
Continue ReadingOverview I bought a couple of MidiVerb II’s in May 2020, both were listed for repair and at a super low cost of £30. Although there is no service manual or schematics online, some information can be gleaned from the MidiVerb III service manual, and I was hopeful that they would be simple repairs. Typical […]
Continue ReadingOverview One of the downsides of owning vintage synths and FX’s from the 1980’s is that there is a risk of power supply failure, with capacitors emitting magic smoke or worse still bursting into flames. I bought an Emulator I many years ago for just £50 because when we switched it on it created a […]
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Overview Back in 1980’s I could only dream of a Lexicon reverb, slim expensive 1U rack FX’s that lived in Pro recording studios. My first FX unit was (IIRC) an ART reverb which was quickly replaced with an Alesis Quadraverb, which served me well for 10 years in the 1990’s. During 2000/2010 I downsized the […]
Continue ReadingOverview I bought a broken Roland SDE1000 Digital Delay in November 2020 for just £40, but with the known fault of it not powering on. I already have a mint and boxed SDE1000 which I find to be a fantastic delay unit for using with analog mono synths. The plan is to repair this one […]
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Overview I picked up an Alesis DataDisk in May 2020 for £25, so I can store and retrieve SysEx data from my hardware synths rather than having to power the computer on and use software. The 1U rack connects up to my MIDI hub and uses a 3.5″ floppy diskette to store 800 KB of […]
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