Matamp Quasar 500 and Laney VH100R guts

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Showed up set to bridge mode, had to open it and find the switch. Turns out not on the side with the diagram. Do spot a toasty looking resistor bottom left though. Still tested right, luckily as it was missing a stripe.

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Right side this time, showing the classic K135 and J50 mosfets. Hand marked bridge/stereo switch on the pcb to the left.

Other thing:

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Laney VH100R, made a bunch of noises and blew a fuse.

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A shorted power valve, a miles out of spec (like, measured a couple of meg rather than open) grid resistor. Suspect someone tried a ‘fix’ by swapping positions before selling this as ‘working’. Couple of dud pres too.

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Ashdown Peacemaker 50 guts.

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think I’ve blogged a buncha these, but they remain kinda stealth Matamps. This is a 50w with the aluminium knobs I’ve not had before. The knobs are much fancier in person, look kinda tacky in photos, machined aluminium to touch.

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Matamp turret track build.

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Unpopulated valve bases. 100w PT topside too, so probably built mostly and finished as 50 or 100w to order.

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Loaded with 6550, sounds great with bass, so I left it like that, bunch of the JJ pres were dead/microphonic. For sale, £400.