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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+PA0RDT\s+whip\s*$/: 5 ]

Total 5 documents matching your query.

1. Re: LF: PA0RDT whip (score: 1): Author: Andy Talbot <[email protected]>; Date: Fri, 4 Nov 2011 18:06:37 +0000; Its only reverse polarity protection - leave it out completely...? Andy 'jnt; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-11/msg00083.html (9,654 bytes)
2. Re: LF: PA0RDT whip (score: 1): Author: "Graham" <[email protected]>; Date: Tue, 08 Nov 2011 21:24:04 +0100; SOT89 looks like it may mount but at 5GHz suspect it needs to be flat against the ground plane ? G. 73, Roelof, pa0rdt The only BFQ19s that I was able to source were SMT. Did you get them in another; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-11/msg00440.html (10,194 bytes)
3. Re: LF: PA0RDT whip (score: 1): Author: Stewart Bryant <[email protected]>; Date: Tue, 08 Nov 2011 20:16:42 +0000; 73, Roelof, pa0rdt The only BFQ19s that I was able to source were SMT. Did you get them in another package? Did you need to use a heatsink with this transistor? 73 Stewart/G3YSX; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-11/msg00498.html (9,658 bytes)
4. Re: LF: PA0RDT whip (score: 1): Author: "Roelof Bakker" <[email protected]>; Date: Fri, 04 Nov 2011 19:10:31 +0100; Hello John, A Schottky diode was used to minimize the voltage drop. However this is not an important issue. On an other note, instead of the trusty 2N5109 a BFQ19, a modern rf transistor, can be used; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-11/msg00705.html (9,109 bytes)
5. LF: PA0RDT whip (score: 1): Author: John Rabson <[email protected]>; Date: Fri, 4 Nov 2011 18:51:45 +0100; LF, I see from the RSGB Handbook that there is a Schottky diode in series with the +12 line. Does it have to be a Schottky device? John F5VLF; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-11/msg00717.html (8,323 bytes)

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