http://www.elecfree.com/electronic/rf-power-amplifier-13w-to-6w-by-2sc1970/ Thu, 08 Jan 2009 00:04:22 +0000 http://wordpress.org/?v=2.6.5 http://www.elecfree.com/electronic/rf-power-amplifier-13w-to-6w-by-2sc1970/#comment-950 RF Power Amplifier 1.3W to 6W by 2SC1970 | วงจร โครงงาน อิเล็กทรอนิกส์ Thu, 18 Sep 2008 01:50:36 +0000 http://www.elecfree.com/electronic/rf-power-amplifier-13w-to-6w-by-2sc1970/#comment-950 [...] This amplifier is based on the transistor 2SC1970 and 2N4427. The output power is about 1.3W and the input driving power is 30-50mW. You can use other transistor as 2SC1971 and get much more output power. … วงจร RF Amplifier ขนาด 1.3Watt ถึง 6Watt ใช้ทรานซิสตอร์ น่าสนใจดี อ่านต่อ [...] [...] This amplifier is based on the transistor 2SC1970 and 2N4427. The output power is about 1.3W and the input driving power is 30-50mW. You can use other transistor as 2SC1971 and get much more output power. … วงจร RF Amplifier ขนาด 1.3Watt ถึง 6Watt ใช้ทรานซิสตอร์ น่าสนใจดี อ่านต่อ [...]

]]> http://www.elecfree.com/electronic/rf-power-amplifier-13w-to-6w-by-2sc1970/#comment-188 AM/FM/SW Active Antenna by MPF102 | Circuit Project Electronic Fri, 30 May 2008 13:38:15 +0000 http://www.elecfree.com/electronic/rf-power-amplifier-13w-to-6w-by-2sc1970/#comment-188 [...] Links More FM Antenna Amplifier circuit More RF Amplifier circuit RF Power Amplifier 1.3W to 6W by 2SC1970 25W RF amplifier by BLY88 RF Preamplifier by 2N2219a , 2N4427 , 2N3553 Wideband VHF/UHF/SHF 22dB [...] [...] Links More FM Antenna Amplifier circuit More RF Amplifier circuit RF Power Amplifier 1.3W to 6W by 2SC1970 25W RF amplifier by BLY88 RF Preamplifier by 2N2219a , 2N4427 , 2N3553 Wideband VHF/UHF/SHF 22dB [...]

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