{"product_id":"fender-rhodes-rewound-pickups-drop-in-zone-kit-calculator","title":"Fender Rhodes Rewound Pickups \/ Drop-In Zone Kit Calculator","description":"\u003cdiv style=\"font-family: sans-serif; max-width: 420px; padding: 20px; border: 1px solid #ccc; border-radius: 8px; background: #fafafa;\"\u003e\n  \u003ch3 style=\"margin-top:0;\"\u003eGhostWood Rhodes Wiring Calculator\u003c\/h3\u003e\n  \n  \u003clabel style=\"display:block; margin-bottom: 5px; font-weight:bold;\"\u003ePickup Resistance (Ω):\u003c\/label\u003e\n  \u003cinput type=\"number\" id=\"r_pickup\" value=\"185\" style=\"width: 100%; padding: 8px; margin-bottom: 12px; box-sizing: border-box;\"\u003e\n\n  \u003clabel style=\"display:block; margin-bottom: 5px; font-weight:bold;\"\u003ePickups per Parallel Group:\u003c\/label\u003e\n  \u003cinput type=\"number\" id=\"group_size\" value=\"3\" style=\"width: 100%; padding: 8px; margin-bottom: 12px; box-sizing: border-box;\"\u003e\n\n  \u003clabel style=\"display:block; margin-bottom: 5px; font-weight:bold;\"\u003eNumber of Keys:\u003c\/label\u003e\n  \u003cinput type=\"number\" id=\"num_keys\" value=\"73\" style=\"width: 100%; padding: 8px; margin-bottom: 15px; box-sizing: border-box;\"\u003e\n\n  \u003cbutton onclick=\"calculateRhodes()\" style=\"width: 100%; padding: 10px; background: #222; color: #fff; border: none; border-radius: 4px; cursor: pointer; font-weight: bold;\"\u003eCalculate Harness Resistance\u003c\/button\u003e\n\n  \u003cdiv id=\"results\" style=\"margin-top: 15px; padding: 10px; background: #fff; border: 1px solid #ddd; border-radius: 4px; display: none;\"\u003e\n    \u003cp style=\"margin: 4px 0;\"\u003e\u003cstrong\u003ePer Group Resistance:\u003c\/strong\u003e \u003cspan id=\"out_group_r\"\u003e\u003c\/span\u003e Ω\u003c\/p\u003e\n    \u003cp style=\"margin: 4px 0;\"\u003e\u003cstrong\u003eTheoretical Total:\u003c\/strong\u003e \u003cspan id=\"out_total_r\"\u003e\u003c\/span\u003e Ω\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\nfunction calculateRhodes() {\n  const r = parseFloat(document.getElementById('r_pickup').value);\n  const size = parseFloat(document.getElementById('group_size').value);\n  const keys = parseFloat(document.getElementById('num_keys').value);\n\n  if (!r || !size || !keys) return;\n\n  const groupR = r \/ size;\n  const totalR = (r * keys) \/ (size * size); \/\/ standard series-parallel averaging formula\n\n  document.getElementById('out_group_r').innerText = groupR.toFixed(2);\n  document.getElementById('out_total_r').innerText = totalR.toFixed(2);\n  document.getElementById('results').style.display = 'block';\n}\n\u003c\/script\u003e","brand":"Ghostwood Musical Instrument Pickups","offers":[{"title":"Default Title","offer_id":51209858777340,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/ghostwoodpickups.com\/products\/fender-rhodes-rewound-pickups-drop-in-zone-kit-calculator","provider":"Ghostwood Musical Instrument Pickups","version":"1.0","type":"link"}