首页 接线图文章正文

无线发射中的6瓦FM功率放大器电路(英文)

接线图 2023年10月21日 14:04 137 admin

Assemble by soldering the components to the pADs indicated. Keep coil, resiSTor, and capacitor leads as short as possible. The coils should be 3/16" to 1/4" above the board and separate turns by one wire diameter. Bend leads to form a little mounting foot for soldering to the circuit board. Tuning and power output are affected by the distance between the coil turns, you can make fine adjustments by either spreading or compressing the coil slightly. The area surrounding the pads is ground. C2, C3, C4, C6, C7, C8, C9, C10, L2, and R1 are soldered at one end to ground as well as the shield braid on the coax cables. Bolt Q1 to a small heat sink or the chassis with heat sink thermal compound or gray thermal pad underneath the tab. With an input level of 200-500mw, you should see an output of 5-6 watts. Be sure to have a proper dummy load (50 ohms) or tuned antenna connected to the output, doing otherwise will likely destroy the transistor. 无线发射中的6瓦FM功率放大器电路(英文)  第1张

无线发射中的6瓦FM功率放大器电路(英文)  第2张

Parts List

Quantity
Description
Part Number(s)
2470 pF mica capacitorC1, C5
175 pF mica capacitorC2
139 pF mica capacitorC3
112 pF mica capacitorC4
20.001 uF disc or monolythic capacitor (marked either 102, .001, or 1n)C6, C8
20.1 uF disc or monolythic capacitor (marked either 104, .1, or 100n)C7, C9
110 to 22 uF electrolytic capacitor (observe correct polarity)C10
11 turn #18 tinned copper, 1/4" dia.L1
11 uH inductor, blue lumpy itemL2
12 turns #18, 1/4" dia.L3
17/10" #14, hairpinL4
25 turns #20, 1/4" dia.L5, L6
156 ohm resistor with ferrite bead over lead at the base of end of Q1R1
12SC1971 RF transistorQ1
2SO239 SoCket
2banana plug (1 each red and black)
2banana socket (1 each red and black)
1ferrite bead
44-40 nuts
44-40 bolts
RG174 coaxial cable
hookup wire
soldering lugs

版权与免责声明

本网转载并注明自其它出处的作品,目的在于传递更多信息,并不代表本网赞同其观点或证实其内容的真实性,不承担此类作品侵权行为的直接责任及连带责任。其他媒体、网站或个人从本网转载时,必须保留本网注明的作品出处,并自负版权等法律责任。

如涉及作品内容、版权等问题,请在作品发表之日起一周内与本网联系,否则视为放弃相关权利。

标签: 无线 电路图射 电路图

发表评论

接线图网Copyright Your WebSite.Some Rights Reserved. 备案号:桂ICP备2022002688号-2 接线图网版权所有 联系作者QQ:360888349