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## Pedal Pi Circuit Analysis. 3 years 9 months ago #1280

 CBPEDALMAN OFFLINE New Member Posts: 2 Karma: 0 On this diagram where does the +1V5 on the input stage connect? Does it connect to the power supply? The administrator has disabled public write access.

## Pedal Pi Circuit Analysis. 3 years 9 months ago #1282

 Ray OFFLINE Moderator Posts: 702 Thank you received: 152 Karma: 44 On this diagram where does the +1V5 on the input stage connect? Does it connect to the power supply?This image will help you: The administrator has disabled public write access. The following user(s) said Thank You: CBPEDALMAN

## Pedal Pi Circuit Analysis. 3 years 8 months ago #1297

 CBPEDALMAN OFFLINE New Member Posts: 2 Karma: 0 Hello, Question regarding this image again. I am using two input jacks from mouser. Mouser number 568-NMJ6HCD2-RM. This is the page describing it. www.neutrik.us/en-us/plugs-jacks/m-series/nmj4hf-s. My question regards how the jack connects to the circuit, regarding the 1 going in and the 2 and 3 going to ground. With a six prong jack would that be pointing to the first pair of prongs as "1"? Thanks in advance. The administrator has disabled public write access.

## Pedal Pi Circuit Analysis. 3 years 8 months ago #1302

 Ray OFFLINE Moderator Posts: 702 Thank you received: 152 Karma: 44 Hi, this image will help you: Basically, the tip (signal) is pin1 and goes deeper into the jack.The pins 2 and 3 are ground (guitar mono signal) and are more at the "output side of the jack". pins 1 2 3 are mirrored at the "other side" of the jack 1 faces 1, 2 faces 2, 3 faces 3. The trick here: Is that the pins of the left hand side get disconnected from the ones on the right hand side, so you only need to connect to the pins on the right (if you look straight to the hole) The administrator has disabled public write access.

## Pedal Pi Circuit Analysis. 3 years 8 months ago #1316

 woshiren OFFLINE New Member Posts: 3 Thank you received: 3 Karma: 2 In MXR MicroAmp，the impedance is Zin=(R1//R2)//(R3+Zinopamp)=(22M//10M)//(1K+106M)=6.8M so this pedal impedance is 1M//1M=500K? But in Pedal Pi page,it said Pedal Pi impedance Zin=1MΩ Attachments: 12.jpg (41KB) The administrator has disabled public write access. The following user(s) said Thank You: Ray

## Pedal Pi Circuit Analysis. 3 years 8 months ago #1318

 Ray OFFLINE Moderator Posts: 702 Thank you received: 152 Karma: 44 Yes, you are right, as we discussed here: www.electrosmash.com/forum/pedalshield-m...ome-question?lang=en The Zin = 0.5MΩ We have updated the pedal-pi article. Thanks for your help! Last Edit: 3 years 8 months ago by Ray. The administrator has disabled public write access.
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