7/7/2023 0 Comments Piezo preamp schematicThe strings for the short scale basses do not have a ferrous component in their construction so a magnetic pickup will not function. The compression control on my Hartke bass amp makes this okay. The result is a wonderful little bass guitar and if I adjust the EQ on the preamp to cut the highs and mids, I have absolutely no complaints about the tonal capabilities other than the dynamic response is a bit harder to control and that is mainly the result of my playing ability. I'm using an economy piezo preamp unit purchased on ebay with a built-in tuner. I used DAddario strings designed for the Taylor GS Mini Bass (DAddario part# EXPPBB190GS). I made a new pickguard and installed a flat-top acoustic guitar style rosewood bridge with a piezo element under the saddle. I repaired the neck joint, tapered and plugged the six tuner holes, applied a veneer faceplate to the headstock, and drilled for 4 bass tuners. The most successful result is from an Epiphone SG that had a broken neck joint. In playing around with this idea, I've converted inexpensive manufactured solid body guitars which just happen to fall into my possession for little or no money. Generally, the goal is a scale length of around 25". This has resulted in a couple of interesting instruments with both positive and negative results. I've been experimenting with short scale basses using strings intended for the UBass and the Taylor GS Mini Bass. I'm looking for a proven and reliable schematic and parts list to build preamps.
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