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23cm Projekten - Versterkers

Klik voor vergroting1 Watt 2.3 GHz RF Amplifier Using a MRF2001 by Mike Micelli
Simplicity and repeatability are featured in this 1-waat S-band amplifier design. The design uses an MRF2001 transistor as a common base, Class C amplifier. The amplifier delivers 1-watt output with 8 dB minimum gain at 24V, and is tunable from 2.25 to 2.35 GHz.
http://www.qsl.net/n9zia/wireless/mrf2001/index.html

Klik voor vergroting435 + 1296MHz ATF54143 Pre-amplifier by GØMRF
The prototype for this amplifier was originally designed for 70cm and was used on the 2004 '3B9C' Dx-pedition to Rodriguez Island for satellite and EME. It had a noise figure of 0.49dB with an associated gain of 20dB.
http://www.g0mrf.com/432LNA.htm

Klik voor vergrotingA 1296MHz 2* 2*2C39 Power Amplifier by DL4MEA
This is how all is assembled: A table just below the roof with my 23cm transverter and the power amplifier. Below the table you will see a battery of capacitors which should support the much too small transformer.
http://www.qsl.net/dl4mea/23c39/23c39.htm

Klik voor vergrotingAN/UPX-4 a 23cm Amplifier with six 2C39As by G4FTC
The AN/UPX-4. This unit was actually made by OZ9CR, and although based upon the original UPX-4 unit, has been redesigned so that it will correctly tune and operate on the Amateur 23cm (1296MHz) band.
http://www.g4ftc.co.uk/amplifiers/upx4/home.htm

Klik voor vergrotingThe PA3CEG 23cm GS35b Project by PA3CEG
This project was based on the latest information (April 2001) from Alex RW1AW. Some of the tubes dimensions in the cavity where hard to find, so they where made from massive material.
http://www.qsl.net/pa3ceg/shf/23cm/23cmpa/uhf/23cm/GS35b/page_01.htm


Creatie datum : 05/09/2007 @ 20:43
Laatste wijziging : 29/09/2014 @ 21:26
Categorie : 23cm Projekten
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