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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+RE\:\s+472\s+kHz\s+PA\s+running\s+at\s+12\s+VDC\s*$/: 14 ]

Total 14 documents matching your query.

1. LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: "PA1SDB, Peter" <[email protected]>
Date: Thu, 28 Jun 2012 10:14:04 +0100
like -- Original Message -- From: [email protected] Rik Strobbe To: [email protected] [email protected] Sent: Thursday, June 28, 2012 6:35 AM Subject: LF: RE: 472 kHz
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00071.html (11,562 bytes)

2. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Thu, 28 Jun 2012 17:53:03 +0200
Hi MF, Late at night, i made draw the schematic. Here it is: https://dl.dropbox.com/u/19882028/MF/100W%20475kHz%20PA.png  (picture of prototype https://dl.dropbox.com/u/19882028/MF/DK7FC%20472%20kHz%
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00120.html (22,707 bytes)

3. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: Jean-Pierre Méré <[email protected]>
Date: Thu, 28 Jun 2012 10:42:28 +0200
Hello Stephan , Me too 73 , Jean-Pierre F1AFJ Le 28/06/2012 10:36, M0FMT a &eacute;crit : Hi Stephan Me Too 73 es GL Pete M0FMT IO91UX From: "PA1SDB, Peter" <[email protected]> To: rsgb_lf_group@black
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00218.html (15,427 bytes)

4. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: M0FMT <[email protected]>
Date: Fri, 29 Jun 2012 19:06:01 +0100 (BST)
Pete I find for a class E PA or class C with series resonant cct at frequency of interest you do not need a LPF. To resonate the PA use an Air core inductor and fixed capicator ie for 500 Khz use 5n
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00231.html (43,112 bytes)

5. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: M0FMT <[email protected]>
Date: Thu, 28 Jun 2012 19:41:39 +0100 (BST)
Hi MF, Late at night, i made draw the schematic. Here it is: https://dl.dropbox.com/u/19882028/MF/100W%20475kHz%20PA.png (picture of prototype https://dl.dropbox.com/u/19882028/MF/DK7FC%20472%20kHz%
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00302.html (27,827 bytes)

6. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Thu, 28 Jun 2012 20:56:03 +0100
Pete There are more simple ways to get on 500. Simple dds or sig gen at freq of interest if sine wave just sq it by using a couple of diodes then a driver chip tc4426 use one side and straight into t
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00336.html (29,125 bytes)

7. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: M0FMT <[email protected]>
Date: Fri, 29 Jun 2012 12:31:25 +0100 (BST)
Hello Pete, I assume that the more exotic parts are the power FET (IRFZ48N) and the driver IC (ICL7667). The IRFZ48N is a 55V / 64A / 0.014 Ohm device. For a first try you could replace it by far mo
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00352.html (37,519 bytes)

8. RE: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Fri, 29 Jun 2012 07:49:40 +0000
Hello Pete, I assume that the more exotic parts are the power FET (IRFZ48N) and the driver IC (ICL7667). The IRFZ48N is a 55V / 64A / 0.014 Ohm device. For a first try you could replace it by far mor
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00361.html (31,174 bytes)

9. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: "Thomas Rosenkranz" <[email protected]>
Date: Fri, 29 Jun 2012 00:28:19 +0200
hy Stefan, hast du auf MW lust?? Thomas -- Original Message -- From: [email protected] Stefan Schäfer To: [email protected] [email protected] Sent: Friday, J
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00446.html (17,489 bytes)

10. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Fri, 29 Jun 2012 00:18:08 +0200
Hi Pete, Am 28.06.2012 20:41, schrieb M0FMT: But they have one of the toroids (T1) wow and its not a min order either double wow! You can make the RFC1 from such a core used for T1 too, or maybe bett
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00539.html (16,453 bytes)

11. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Fri, 29 Jun 2012 15:08:48 +0100
Pete I find for a class E PA or class C with series resonant cct at frequency of interest you do not need a LPF. To resonate the PA use an Air core inductor and fixed capicator ie for 500 Khz use 5nF
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00620.html (39,563 bytes)

12. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: M0FMT <[email protected]>
Date: Thu, 28 Jun 2012 09:36:42 +0100 (BST)
like -- Original Message -- From: [email protected] Rik Strobbe To: [email protected] [email protected] Sent: Thursday, June 28, 2012 6:35 AM Subject: LF: RE: 472 kHz
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00649.html (14,741 bytes)

13. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: M0FMT <[email protected]>
Date: Thu, 28 Jun 2012 10:22:35 +0100 (BST)
Hi Stefan<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> http://www.ebay.co.uk/itm/IRFZ24N-Transistor-x-1-pieces-IRFZ24-/160818253496?pt=UK_BOI_Electrical_Components_Supp
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00705.html (18,706 bytes)

14. Re: LF: Re: RE: 472 kHz PA running at 12 VDC (score: 1)
Author: M0FMT <[email protected]>
Date: Thu, 28 Jun 2012 10:46:21 +0100 (BST)
Hi Stefan http://www.ebay.co.uk/itm/IRFZ24N-Transistor-x-1-pieces-IRFZ24-/160818253496?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item257183ceb8 Just over £5 a pop! http://www.ebay.co.uk/itm/NE
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00724.html (20,255 bytes)

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