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![](https://ae01.alicdn.com/kf/S4f4f5ecb1f52441cbfabf597c905ee82N/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/Sb32b01934ef34f1fb1b297d0ed8c5797a/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/Scb482b32ce784f5f9bd4b9e58f47591fn/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/S6dc665f325974d8288878a72d797db4eW/UTC-A-12B4A-2-1.jpg) aHR0cDovL2ZyZWVzaGlwLmNvLmty![](https://ae01.alicdn.com/kf/S4f4f5ecb1f52441cbfabf597c905ee82N/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/Sb32b01934ef34f1fb1b297d0ed8c5797a/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/Scb482b32ce784f5f9bd4b9e58f47591fn/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/S6dc665f325974d8288878a72d797db4eW/UTC-A-12B4A-2-1.jpg) ![](https://ae01.alicdn.com/kf/S3e28bbf3cd5c4f8e8a190a950086f0d2G/UTC-A-12B4A-2-1.jpg)
- Æ÷Àå: ±×·¸½À´Ï´Ù
- ¼ö·Î: 2 (2.0)
- ÃÖ´ë ä³Î´ç Àü·Â: 4w
- ºê·£µå À̸§: lyele
- ±Ù¿ø: CN (Á¤Ç°)
- Amplifier type: single-ended amplifier,Tube amplifier board,Class A power amplifier board,Tube amplifier
- Output Power: 1.5w+1.5w
- Tube: 12B4A UTC
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Á¦Ç° ¼³¸í: 12B4A ´Â ¹Ì±¹ UTC ±º»ç ±ÔÁ¤ 5K: 8 À¯·Î-´ÏÄÌ ÇÕ±Ý Ãâ·Â º¯¾Ð±â ¼ÒÇü Àü·Â ÁõÆø±â ȸ·Î ±âÆÇÀ» Ǫ½ÃÇÕ´Ï´Ù. ÇöÀçÀÇ °ÅÀÇ ¸ðµç ÇÏÀÌ Ãæ½Çµµ ÁõÆø±â´Â 3 ±Ø°ü ÁõÆøÀ» »ç¿ëÇÕ´Ï´Ù. 12B4A ´Â ½ÇÁ¦·Î ´ÜÀÏ È¸é 2A3 ÀÇ ¼ÕÀÚÀÔ´Ï´Ù. ±×°ÍÀº ÀÌÀü¿¡ TV ¼¼Æ®ÀÇ Àü°è ÁõÆø ȸ·Î¿¡ »ç¿ëµÇ¾úÀ¸¸ç ¸Å¿ì À¯»çÇÑ ¸Å°³ º¯¼ö¸¦ °¡Áö°í ÀÖ½À´Ï´Ù: mu = 6.5 , Gm = 6.3ma/V, Rp = 1030 Ohm. 12B4A ´Â ³ôÀº Æ®·£½º ÄÁ´öÅϽº, ³·Àº ³»ºÎ ÀúÇ×, ³·Àº ¹èÀ²À» °¡Áø ´ÜÀÏ 3 ±Ø¼ÒÀÌ¸ç ¸Å¿ì ÆòÆòÇÑ ÀÓÇÇ´ø½º Ư¼º, Áï ÁÁÀº ¼±Çü¼ºÀ» °¡Áö°í ÀÖ½À´Ï´Ù. (mu = RpxGm) ¿Ü±¹ÀÎÀÇ DIY Æ÷·³¿¡¼ ±×µéÀºÀÌ Àú ÀúÇ× Æ©ºê¸¦ "»ç¿îµå ų·¯" ¶ó°í ºÒ·¶°í 12B4A ´Â ±× Áß¿¡¼µµ ÈξÀ À¯¸íÇß½À´Ï´Ù. ¿Ü±¹ DIYers´Â 12B4 ´ÜÀÏ Æ©ºê °øÅë À½±Ø ÁõÆø±â ȸ·ÎÀÇ »ç¿îµå ¼º´ÉÀÌ ºñ¿ëÀÌ 3 ¹è ÀÌ»óÀÎ À¯¸íÇÑ GG ȸ·Î¸¦ °ÅÀÇ ¿ÏÀüÈ÷ ´É°¡ÇÑ´Ù´Â °ÍÀ» ¿¬¼ÓÀûÀ¸·Î ¹ß°ßÇß½À´Ï´Ù. ÀÌ È¸·Î´Â 2 ä³Î ¼³°è, Ŭ·¡½Ä ¶óÀÎ, ÀԷ°ú Ãâ·Â °£ÀÇ Á÷Á¢ °áÇÕ, ¾ÈÁ¤ÀûÀÎ ÀÛµ¿, ³ÐÀº ÁÖÆļö ÀÀ´ä ¹× ³·Àº ¿Ö°îÀÔ´Ï´Ù. ÀÌ È¸·Î´Â °£´ÜÇÏ°í ¸¸µé±â ½±°í Á¶Á¤ÇÒ ÇÊ¿ä°¡ ¾øÀ¸¸ç »ç¿îµå ¹è°æÀÌ Á¶¿ëÇÏ°í ´ë´ãÇÑ ¸ÀÀÌ °ÇÏ°í À½ÁúÀÌ Åõ¸íÇÏ¸ç ºÐ¼®·ÂÀÌ ³ô½À´Ï´Ù. °í, Áß ¹× Àú ÁÖÆļö ¼º´ÉÀº »ó´ëÀûÀ¸·Î ±ÕÇüÀ» ÀÌ·ç°í, °ø±â´Â °¡µæ Â÷°í, ¿ªµ¿ÀûÀÌ°í ÁÁÀº º¸Äà ¼º´ÉÀÌ ¿ì¼öÇÕ´Ï´Ù. ´Ù¸¥ Á¦Á¶¾÷üÀÇ ÀüÀÚ Æ©ºê·Î ÀüȯÇÏ¸é »ç¿îµå°¡ ±×¿¡ µû¶ó º¯°æµÇ°í °ÔÀÓ Ç÷¹ÀÌ°¡ ÈξÀ ´õ Àç¹Ì ÀÖ½À´Ï´Ù. °£´ÜÇÏ°í ¾Æ¸§´Ù¿î »ç¿îµå ȸ·Î·Î ½ÃµµÇØ º¼ °¡Ä¡°¡ ÀÖ½À´Ï´Ù. ÀÌ È¸·ÎÀÇ °£´ÜÇÑ Á¤·ù ¹× ÇÊÅ͸µÀº ÁÁÀº È¿°ú°¡ ÀÖ½À´Ï´Ù. Å×½ºÆ® Çʶó¸àÆ®´Â DC Àü¿ø °ø±Þ ÀåÄ¡¿Í µ¿ÀÏÇÑ È¿°ú·Î AC 6.3 V·Î Àü¿øÀÌ °ø±ÞµÇ¸ç ¸Å¿ì Á¶¿ëÇÕ´Ï´Ù. ÀåÁ¡: ±¸Á¶´Â °íÀüÀûÀÌ°í ´Ü¼øÇÏ¸ç ¼Ò¸®´Â ¾Æ¸§´ä°í ¿ë±â´Â °¡µæÇÕ´Ï´Ù.
![](https://ae01.alicdn.com/kf/S73a81ab7f7f04790a9362f6ffbefcfc31.jpg?width=800&height=800&hash=1600) ![](https://ae01.alicdn.com/kf/S3b1b0d81292e4c25acb12cf36ef17fda8.jpg?width=800&height=800&hash=1600) ![](https://ae01.alicdn.com/kf/Sdb58ddf3a56c45aa84746754333839d6D.jpg?width=800&height=800&hash=1600) ![](https://ae01.alicdn.com/kf/S9308abd999634235938936cd705b5213T.jpg?width=800&height=800&hash=1600) ![](https://ae01.alicdn.com/kf/S0d9499a518d446ddbb23892180dfeab9X.jpg?width=800&height=800&hash=1600) ![](https://ae01.alicdn.com/kf/Sbc43ee59f8fc4124afee414be7a2e47eX.jpg?width=800&height=800&hash=1600)
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