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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Class\s+E\s+PA\s*$/: 16 ]

Total 16 documents matching your query.

1. LF: Class E PA (score: 1)
Author: DK1IS <[email protected]>
Date: Sun, 7 Oct 2018 19:51:12 +0200
Hello Group, Planning a new single-ended Class E PA for my activities on the Dreamers Band (8.27 kHz) two questions came up - perhaps someone can help me: -  Being interested only in on-off-keying I´
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00074.html (10,004 bytes)

2. Re: LF: Class E PA (score: 1)
Author: David Bowman <[email protected]>
Date: Mon, 8 Oct 2018 21:05:33 +0000
Hello Group, Planning a new single-ended Class E PA for my activities on the Dreamers Band (8.27 kHz) two questions came up - perhaps someone can help me: -  Being interested only in on-off-keying I
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00083.html (11,547 bytes)

3. Re: LF: Class E PA (score: 1)
Author: Andy Talbot <[email protected]>
Date: Mon, 8 Oct 2018 22:23:05 +0100
Hello Group, Planning a new single-ended Class E PA for my activities on the Dreamers Band (8.27 kHz) two questions came up - perhaps someone can help me: -  Being interested only in on-off-keying I
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00084.html (13,211 bytes)

4. Re: LF: Class E PA (score: 1)
Author: Riccardo Zoli <[email protected]>
Date: Mon, 8 Oct 2018 23:21:08 +0200
Hello Group, Planning a new single-ended Class E PA for my activities on the Dreamers Band (8.27 kHz) two questions came up - perhaps someone can help me: -  Being interested only in on-off-keying I
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00085.html (11,995 bytes)

5. Re: LF: Class E PA (score: 1)
Author: DK1IS <[email protected]>
Date: Tue, 9 Oct 2018 12:40:43 +0200
Hi Riccardo, thanks for the link - I prefer the most basic version. But like in all other papers I know the problem of the first positive drive pulse after applying the DC power is ignored - perhaps
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00086.html (14,103 bytes)

6. Re: LF: Class E PA (score: 1)
Author: Johan Bodin <[email protected]>
Date: Tue, 9 Oct 2018 17:00:17 +0200
Hello Tom, most schoolbook class-E designs assume a DC feeding choke with infinite inductance i.e. a huge inductor that keeps the DC current constant without any RF ripple. This is of course totally
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00091.html (11,810 bytes)

7. Re: LF: Class E PA (score: 1)
Author: DK1IS <[email protected]>
Date: Tue, 9 Oct 2018 17:49:56 +0200
Hej Johan, thanks for your budding info! I would be glad to get these documents concerning the DC feed inductor. Perhaps you´ll find some additional information about the shunt capacitor problem too?
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00092.html (13,237 bytes)

8. Re: LF: Class E PA (score: 1)
Author: DK7FC <[email protected]>
Date: Tue, 09 Oct 2018 19:20:29 +0200
Hi Tom, Why do you secide for a class-E at all? Do you see any actual advantage over a class D? 73, Stefan Am 09.10.2018 17:49, schrieb DK1IS: Hej Johan, thanks for your budding info! I would be glad
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00093.html (13,246 bytes)

9. Re: LF: Class E PA (score: 1)
Author: DK1IS <[email protected]>
Date: Thu, 11 Oct 2018 15:33:30 +0200
Am 09.10.2018 um 19:20 schrieb DK7FC: Hi Tom, Why do you decide for a class-E at all? Do you see any actual advantage over a class D? 73, Stefan Hi Stefan, A very good question! Knowing you are a ded
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00098.html (11,677 bytes)

10. Re: LF: Class E PA (score: 1)
Author: Johan Bodin <[email protected]>
Date: Thu, 11 Oct 2018 21:09:29 +0200
Hi Tom, the keyed PSU sounds like a good way to go considering your very slow keying speeds! I'm also attracted by the combination of simplicity and ultimate efficiency of single ended class E but ke
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00099.html (12,741 bytes)

11. Re: LF: Class E pa (score: 1)
Author: John P-G <[email protected]>
Date: Wed, 25 Nov 2009 13:29:18 +0000
LF, Roger, Mal gave some insightful comments re: Class-E I have also used a class-E amp on 500kHz,and I echo all the comments about careful choice of FET and of the output tuning/loading to get the c
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00049.html (9,968 bytes)

12. Re: LF: Class E pa (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Wed, 25 Nov 2009 15:23:23 +0100
Hello Tony, I'm still using a Derivative of the Design from G3YXM's class E 1KW TX on LF If you refer to the TX in http://www.wireless.org.uk/136rig.htm : this is a class D TX, not class E. I am also
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00167.html (11,507 bytes)

13. Re: LF: Class E pa (score: 1)
Author: John P-G <[email protected]>
Date: Wed, 25 Nov 2009 19:52:54 +0000
Finbar does I do (although I'm lacking a suitable antenna at the moment, so the MF TX is in mothballs) Any more.... J GM4SLV
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00425.html (9,240 bytes)

14. Re: LF: Class E pa (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 25 Nov 2009 16:13:39 +0100
Tony The G3YXM designs are class D and not class E. I do not know of any amateur using class E except myself. There could be others of course but most favour class D probably because they are more fl
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00516.html (12,709 bytes)

15. Re: LF: Class E pa (score: 1)
Author: Anton Bärtschi <[email protected]>
Date: Wed, 25 Nov 2009 12:47:12 +0100
Ref recent discussion on the subject.   I use a class E pa on 500 kcs and never get any trouble. As a general guide use high voltage fets and the fet V should be rated at  about 5 times the supply V
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00566.html (12,275 bytes)

16. LF: Class E pa (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 25 Nov 2009 10:25:15 +0100
Ref recent discussion on the subject. I use a class E pa on 500 kcs and never get any trouble. As a general guide use high voltage fets and the fet V should be rated at about 5 times the supply V and
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00745.html (9,991 bytes)


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