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Hoffman Amps Forum image Author Topic: Dumble input jack wiring?  (Read 2215 times)

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Offline idsnowdog

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Dumble input jack wiring?
« on: February 14, 2024, 05:11:36 pm »
I built a MOSFET boost for a project.  The amp has two inputs and one of the jacks is supposed to be a switching type to turn it on when plugged into one of the inputs.  However,  I don't see a schematic showing how to wire open frame jacks. 

Offline idsnowdog

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Re: Dumble input jack wiring?
« Reply #1 on: February 14, 2024, 05:24:54 pm »
I see the wiring for enclosed jacks but not open jacks.  This is the booster I built which is taken from the Nana schematic.


Offline WimWalther

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Re: Dumble input jack wiring?
« Reply #2 on: February 14, 2024, 06:11:32 pm »
The open-frame aka wafer-style jacks don't have the same switch configuration as do the plastic type.

They are not direct substitutes.

Offline acheld

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Re: Dumble input jack wiring?
« Reply #3 on: February 15, 2024, 10:10:58 am »
This might help.

Added:  Green goes to FET bd input
            Blue is the FET signal out
« Last Edit: February 15, 2024, 10:50:46 am by acheld »

Offline idsnowdog

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Re: Dumble input jack wiring?
« Reply #4 on: February 15, 2024, 11:03:52 am »
Thanks that clarifies many things.

 


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