qrphomebrew.blogspot.com

QRP Homebrew

Blog for QRP homebrew projects. Sunday, October 16, 2011. Base Bias Tuned VFO. VE7BPO describes the interesting article called Base Bias Tuned VFO. The VFO is based on the common base colpitt's oscillator and tries to change the bias voltage. The 2N3904 transistor. Is used for the VFO. Monday, October 03, 2011. BS170 is used for the QRP rig PA. The 2N7000 PA was described in my blog message. Sometime ago. The BS170 by Fairchild. Is the triple BS170 for PA and generates 5 Watts with 12V power supply.

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Blog for QRP homebrew projects. Sunday, October 16, 2011. Base Bias Tuned VFO. VE7BPO describes the interesting article called Base Bias Tuned VFO. The VFO is based on the common base colpitt's oscillator and tries to change the bias voltage. The 2N3904 transistor. Is used for the VFO. Monday, October 03, 2011. BS170 is used for the QRP rig PA. The 2N7000 PA was described in my blog message. Sometime ago. The BS170 by Fairchild. Is the triple BS170 for PA and generates 5 Watts with 12V power supply.

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QRP Homebrew | qrphomebrew.blogspot.com Reviews

https://qrphomebrew.blogspot.com

Blog for QRP homebrew projects. Sunday, October 16, 2011. Base Bias Tuned VFO. VE7BPO describes the interesting article called Base Bias Tuned VFO. The VFO is based on the common base colpitt's oscillator and tries to change the bias voltage. The 2N3904 transistor. Is used for the VFO. Monday, October 03, 2011. BS170 is used for the QRP rig PA. The 2N7000 PA was described in my blog message. Sometime ago. The BS170 by Fairchild. Is the triple BS170 for PA and generates 5 Watts with 12V power supply.

INTERNAL PAGES

qrphomebrew.blogspot.com

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QRP Homebrew : 2N7000 for PA of QRP Rig

http://qrphomebrew.blogspot.com/2007/03/2n7000-for-pa-of-qrp-rig.html

Blog for QRP homebrew projects. Wednesday, March 21, 2007. 2N7000 for PA of QRP Rig. A small MOS FET is often used for PA of QRP rigs. Here. Is the specification of the FET. The maximum Power is 400mW but QRP rigs are used for 1W power output PA. The schemantic. Of DC40A has 2N7000 for PA and there is no loading resistor. Once the gate of 2N7000 gets the RF voltage, the FET acts as a high-speed switching element. Therefore, the element generates a large power at the switching cycle.

2

QRP Homebrew : Base Bias Tuned VFO

http://qrphomebrew.blogspot.com/2011/10/base-bias-tuned-vfo.html

Blog for QRP homebrew projects. Sunday, October 16, 2011. Base Bias Tuned VFO. VE7BPO describes the interesting article called Base Bias Tuned VFO. The VFO is based on the common base colpitt's oscillator and tries to change the bias voltage. The 2N3904 transistor. Is used for the VFO. Hi,I would very much appreciate a permanent link on your blog-site to my QRP shortwave website. Here’s a link to my QRP-website: www.stationqrp.com. Thank you very much in advance! December 31, 2014 5:35 AM.

3

QRP Homebrew : July 2007

http://qrphomebrew.blogspot.com/2007_07_01_archive.html

Blog for QRP homebrew projects. Saturday, July 28, 2007. PE SUS (Light-weight antenna wire by Saga Denshi). The light-weight antenna wire has been found. It is made by Saga Denshi. It weighs only 110g for 22 meters. This page. Sells at 1380 JPY for 22 meters. It can be used for 40M dipole antenna for 1/2 wave. When I make my own antenna, I purchase it for HF antennas. Monday, July 23, 2007. 40m CW transmitter by KEM. Kida Engineering Manufacture (KEM) has introduced the 40m CW transmitter kit ( KEM-TX7-CW.

4

QRP Homebrew : April 2007

http://qrphomebrew.blogspot.com/2007_04_01_archive.html

Blog for QRP homebrew projects. Friday, April 27, 2007. Harry describes the basic linear amplifier for HF transceiver. It is not QRP rig, but might be interesting in the homebrewer of QRP rigs. Is well organized and you can understand it easily. Transistors are 2SC2078 with 5-10 watts. Monday, April 16, 2007. 7MHz (40m) SSB/CW Receiver KEM-RX7. Kida Engineering Manufacture (KEM). In Japan has introduced the 40meters (7MHz) receiver called KEM-RX7. US$5487) for DX orders. Saturday, April 14, 2007. 6m 20mW...

5

QRP Homebrew : October 2011

http://qrphomebrew.blogspot.com/2011_10_01_archive.html

Blog for QRP homebrew projects. Sunday, October 16, 2011. Base Bias Tuned VFO. VE7BPO describes the interesting article called Base Bias Tuned VFO. The VFO is based on the common base colpitt's oscillator and tries to change the bias voltage. The 2N3904 transistor. Is used for the VFO. Monday, October 03, 2011. BS170 is used for the QRP rig PA. The 2N7000 PA was described in my blog message. Sometime ago. The BS170 by Fairchild. Is the triple BS170 for PA and generates 5 Watts with 12V power supply.

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qrphomebrew.blogspot.com

QRP Homebrew

Blog for QRP homebrew projects. Sunday, October 16, 2011. Base Bias Tuned VFO. VE7BPO describes the interesting article called Base Bias Tuned VFO. The VFO is based on the common base colpitt's oscillator and tries to change the bias voltage. The 2N3904 transistor. Is used for the VFO. Monday, October 03, 2011. BS170 is used for the QRP rig PA. The 2N7000 PA was described in my blog message. Sometime ago. The BS170 by Fairchild. Is the triple BS170 for PA and generates 5 Watts with 12V power supply.

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