guitar pickup impedence question

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loctal
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guitar pickup impedence question

Post by loctal »

I have many input transformers in my junk box and would like to try one in an amp build. Does anyone know what impedence load a single coil from a strat or P-90 would like to see? Thanks for any help or ideas.
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jjman
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Re: guitar pickup impedence question

Post by jjman »

A typical Fender tube amp would present about 1 meg on a "#1" input and 68k on a "#2" input if I understand correctly. The guitar prefers the 1meg.

What would it do in your case? (I use one to flip phase in an effects loop.)
If it says "Vintage" on it, -it isn't.
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Structo
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Re: guitar pickup impedence question

Post by Structo »

What is an input transformer?
Tom

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David Root
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Moving Target

Post by David Root »

Single coils before they go thru a 250K pot are lowish impedance, but the output impedance of a magnetic pickup is frequency dependent and the math gets pretty complex.
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benoit
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Re: Moving Target

Post by benoit »

David Root wrote:Single coils before they go thru a 250K pot are lowish impedance, but the output impedance of a magnetic pickup is frequency dependent and the math gets pretty complex.
But the complex math only makes life simpler ;)

As to the question about input transformers, we don't use them in guitar amps (at least I've never seen it) but they're used a lot in microphone preamps, DIs, compressors, and the like.
"I never practice my guitar. From time to time I just open the case and throw in a piece of raw meat." --Wes Montgomery
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