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Got a blackface Deluxe reverb with weak trem.
The oscillator circuit seems fine, would the roach cause this?
Any other usual suspects?
thanks.
The oscillator circuit seems fine, would the roach cause this?
Any other usual suspects?
thanks.
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Could be the tremelo cap. Which model is it ? If it has the neon and thermistor see if it's blinking when you turn the speed and intensity up.KB -
Twas the roach.
It was blinky blinky alright, but had a high resistance on one side that measured about 60k on a good one borrowed from a Twin Reverb.
popped the good one in and it works nice.
In 20+ years of amp fiddlin' it was my first bad roach in a Fender...of course it is a 40 yr old amp!Comment
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Sometimes you can ohm out that thermistor I think it should be about 120 ohms. Check both and you could use it for a reference check. I haven't seen to many of them go either when they are blinking right.KBComment
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Isn't that a photo-sensitive resistor? IIRC the max resistance is usually around 2 Megohm. I don't remember the minimum resistance.Comment
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