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Started by J M Fahey, March 17, 2011, 12:23:04 AM
Quote from: J M Fahey on February 16, 2012, 11:25:38 AMWell, thanks !!!The only problem with that is that Gurus are required to wear a towel wrapped around their heads, sleep often on a nail bed but, worst of all, weigh around 40Kg.In that case, either I am 60Kg over limits *or* I should be properly called "Oh 2 1/2 Gurus". And , even worse, Gurus are strict Vegetarians, can´t eat "asado"(BBQ) or "choripán" (coal grilled spicy sausage sandwich). No way José. !!
Quote from: J M Fahey on March 17, 2011, 12:23:04 AMSome images:
Quote from: J M Fahey on April 17, 2012, 10:59:33 AMYou already *have* one ... it's the Lamp brightness.Normal is dark orange, red or almost invisible; a shorted amp is bright shining as if it were connected to illuminate the room, it will usually blink in rhythm with the music.
QuoteSo you replace both transistors but you don't yet know if that's the fix.
Quote from: DrewV on April 17, 2012, 10:57:08 PMI'll just make a couple comments here. Regarding the level of bulb brightness, I have found that different amps draw more or less current while "idleing" causing the bulb glow a little brighter or dimmer. Second, to prevent a situation like JM described always use a variac to bring the voltage up gently. If the amp is drawing excessive current you'll see it before you raise the V to high.
Quote from: DrewV on April 19, 2012, 12:58:17 PMTom, Yeah that's how I've always done it. You'll know right away by the brightness of the bulb if excessive current is flowing.
Quote from: noddyspuncture on April 20, 2012, 07:09:37 AMWhich one first though - I was earlier thinking Varic first - but now, thinking about it the Bulb first would seem to make more sense... or does it on matter?
Quote from: joecool85 on April 20, 2012, 01:16:30 PMQuote from: noddyspuncture on April 20, 2012, 07:09:37 AMWhich one first though - I was earlier thinking Varic first - but now, thinking about it the Bulb first would seem to make more sense... or does it on matter?It may not matter, but I would put the Variac first, then plug the Light Bulb Limiter into that, and the project amplifier into the limiter.