I am working on a 1975 Fender Princeton Reverb. I noticed some anomalies in the circuitry that does not match the B1270 schematic.
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Jazz P Bass,
You are scaring me. I cut the ends off an IEC cord to replace damaged power cords in my amp repairs. I guess I should start testing...
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Here is a visual of how it should be wired using USA wire colors. This is the same wiring scheme with electrical wall outlets. Just think "Black Gold"....
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Fender convenience outlets
It seems like every time I work on a Fender amp with a 3-prong convenience outlet it is wired wrong. Black (hot) should go to the gold terminal and white...
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Measuring low resistance values on a reverb tank.
I am working on a 70's Silverface Princeton Reverb. The reverb tank is an Accutronics 064063 that is equivalent to the 4AB3C1B. The specifications say the...
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I agree with the mods. It is hard to know what it will sound like until after it is done. It's probably not a big deal if the mod is reversible. I don't like...
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Ever have a customer that hated the repair?
My fellow repair guy friend and I were discussing repairs. I only occasionally do repairs for friends. I mostly work on my gear, then sell it.
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What I like about REPC is they will take everything free of charge, though I do think they charge for microwaves for some reason. They will then test and...
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Well, to answer my question,. I called REPC, my local electronic disposal company. They said to bring bags of your waste down to them. They will sort it out...
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Hazardous electronic waste?
My garbage can i getting full of blown/broken parts that I have removed from my amp projects. What type of parts should I separate out as hazardous electronic...
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I am familiar with Peavey amps but not this model. I have found that sometimes amplifier circuits do not like light bulb limiters. The reduced current screws...
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Peavey Seminconductor/Transistor Cross Reference Lists
I came across these old Peavey transistor cross reference lists in my reference files. I have seen the 1994 list online, but I have never seen the 1988 list....
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Great heatsink compound remover!
I have found the best thing to remove heatsink compound (old and new) is Simple Green All Purpose Cleaner. That stuff works great and is available at groccery...
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Just working my way through a ton of output transistors. (This is just the tip of the iceberg.)
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Great transistor tester
This is a great transistor tester! I have used the Peak Atlas DCA55 for many transistors. It works great for larger output transistors. I am currently working...
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Ewwwww that smell!
I was gifted a Gibson Super Goldtone GA-30RV chasis. The amp suffered a catastrophic failure and components are burned. Boy, it must have been quite a firework...
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Thanks for the schematic. I did find it previously but only in individual pages. Now if I could only find a Slivertone numbers to actual transistor model...
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Silvertone 1464 hiss?
Is anyone familiar with Silvertone 1464 solid state 100 wall guitar amp heads? Do they have a noticeable hiss with no guitar plugged in? Thanks.
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How to cut a round hole?
What is the best way to cut a round speaker hole in playwood without making it look amateurish?
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