Treat it as a learning experience and rebuild it with guidance, or pay and get it done. This special edition includes: Lundahl LL 2785B transformers, PCB board and HV. Power resistors, such as power supply and cathode, are service items.Īmps are fun, but they can hold surprises for the unwary. 61 Dared VP-300B Tube Quasi-Monoblock Power Amplifier Wood Features 229. Signal resistors generally don't give too much trouble, but carbon composites can degrade to give a 'grainy' sound upon vibration, such as playing a combo loud. Signal electrolytics last longer, usually, but they're inexpensive to replace. The amp may be working now, but to keep it that way, it may well need servicing. There's no real way of telling, and you may have one that's wholly compos mentis, and one that's succumbed to capacitor dementia.Īssume you'll need to replace them. Your DIY transformers will almost always be significantly cheaper than commercial alternatives and often of better quality and better sounding than famous names. Power electrolytics can be dead in less than a decade, or can soldier on for many decades. Electrolytic capacitors can dry out or spooge. Would need clear, close-up pictures of the transformer for that.Ī lot of older Brit amps had the selector. Now things can get shockingly interesting. Some transformers can be wired for different voltages.
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