From: G0MRF@aol.com
Message-ID: <1cd.b5e81c1.2c16eaa1@aol.com>
Date: Tue, 10 Jun 2003 04:02:41 EDT
To: rsgb_lf_group@blacksheep.org
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Subject: LF: 300W  136kHz TX
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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2>I had a call from Bob G8RW today.
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<BR>Bob has one of my 300W class D transmitters which he ran as a 'beta test' prototype for me. &nbsp;
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<BR>Bob has gone QRT on LF due to the ever increasing switched mode power supply QRM and would like to find a new home for the TX.
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<BR>The transmitter is housed in an aluminium case apx 12 W &nbsp;x 6H x 10 D (inches). From memory, It has a fan, 12V PSU for the logic and had some extra protection voltage clamping diodes fitted across the FETs. - I can't remember if there is an internal 30V psu for the FETs or not.......Best check with Bob and adjust price accordingly.
<BR>Frequency control is the on-board VCXO but there is an input on the PCB for a DDS etc at CMOS levels.
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<BR>Price can be haggled, but something around the cost of the TX kit (Ł79) seems fair as this means you'll save the effort of building it and the cost of the box, heat sink, fan and PSUs etc. - 
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<BR>Bob's telephone number is &nbsp;020 8462 1592 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;QTH is Bromley Kent.
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<BR>73
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<BR>David &nbsp;G0MRF </FONT></HTML>