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আজ আপনাদেরকে খুব সু্ন্দর এবং সহজ একটি FM ট্রান্সমিটর সার্কিট উপহারদিব
উপরে যে আইসিটি দেখতে খুব ছুট কিন্ত গুনগত মানের দিকে অনেক ভাল। এই ছুট আইসিটির ভিতরে রয়েছে সাতটি ট্রান্জেষ্টর
C1651 আইসিটির ব্লক ডায়াগ্রামটি আসুন সবাই একটু দেখে নেই=
FM ট্রান্সমিটর মানেই বিনা তারে কথা বলা, FM ট্রান্সমিটর কি আমরা সবাই যানি তাই বিস্তারিত বলার প্রোয়জন মনে করি না।
C1651 আইসিটির চারটি পা , একটি ইনপুট, একটি +volt,একটি-volt, এবং সব চাইতে লম্বা পা টি হল আউটপুট আসুন আইসির ছবিটি দেখি=
আমাদের মধ্যে যে সব বন্ধুরা একে বারে নুতন তাদের জন্য যদি সার্কিট একটুক বড় হয়ে যায় তাহলে সার্কিট তৈয়ার করতে অনেক কঠিন মনে হয়, তাদের কথা চিন্তা করেই এই সার্কিটটি দিলাম। আসুন সার্কিটি ভাল করে দেখি=
আশাকরি সকলেই সার্কিটটি তৈয়ার করতে পারবেন, আমার কাছে মনে হয় সহজ এবং ভাল মানের একটি সার্কিট, তাই সকলেই তৈয়ার করুন এবং সার্কিটটির মজা উপভোগ করুন মাত্র একটি C1651 আইসি এবং তিনটি কেপাসিটর একটি রেজিষ্টর একটি মাক্রফোন একটি কয়েল ও একটি ট্রিমার মোট আটটি পার্স দিয়েই হয়ে গেল সুন্দর একটি FM ট্রান্সমিটর সার্কিট।
সার্কিটটি নিয়ে কিছু কথা, লক্ষ্য করে দেখুন পাউয়ার সাপ্লাই ভোল্ট হিসেবে এখানে +4volt দেয়া হয়েছে এই বেটারী টি বাজারে
কিনতে পাওয়া যায়, এই বেটারীটি চাইনা টর্সলাইটে মধ্যে ব্যবহার হয়ে থাকে। এখন যদি মনে করেন 6volt অথবা 9volt সারকিটটিতে সাপ্লাই দিতে চান তাহলে এখানে একটি AN 7805 আইসির মাধ্যমে ভোল্ট সাপ্লাই দিবেন ।
এটি হল AN7805 আইসি একনাম্বর পা ইনপুট, দুই নাম্বার পা গ্রাউন্ড, তিন নাম্বার পা আউট পুট,
আসুন সারকিটে লাগানো অবস্তায় দেখি ।
এর চাইতে সহজ Fm ট্রান্সমিটর কোথাও পাবেন না তাই আর দেরি না করে নিজের হাতেই তৈয়ার করে ফেলুন FM ট্রান্সমিটর।
এখন যদি মনে করেন সারকিটটির রেন্জ আরো বাড়াতে চান, তাহলে নিচের সর্কিটটি ভাল করে দেখুন
এই সার্কিটটিতে দেখুন শুধু মাত্র একটি C9018 ট্রান্জেষ্টর আইসিটির ইনপুটে লাগানো হয়েছে সার্কিটটির রেন্জ কতটুকু ? তা প্রশ্ন না করে সার্কিটটি নিজের হাতে তৈয়ার করে দেখুন ।
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