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Total 11 documents matching your query.

1. Re: LF: Fw: LOST TRACK (score: 1): Author: "Graham" <[email protected]>; Date: Wed, 12 Sep 2012 16:17:11 +0100; Mal, Things have moved on a bit You can use a class E/D amp in linear , with envelope restoration , that maintains the efficiency , s/n imd is about 35 dB . The Op structure allows for up to 50% loss; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00023.html (12,652 bytes)
2. Re: LF: Fw: LOST TRACK (score: 1): Author: "Graham" <[email protected]>; Date: Wed, 12 Sep 2012 17:44:50 +0100; Jim M0BMU Published a design and made a working system ........ he also eliminated the need for a complicated drive by using complimentary out put devices ... I don't know who else made such a thing; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00187.html (13,987 bytes)
3. RE: LF: Fw: LOST TRACK (score: 1): Author: "Lee Hudson" <[email protected]>; Date: Thu, 13 Sep 2012 00:12:01 +0100; Hi Graham, Only modification required is to the rig! To allow TX on 3.472-478 or whatever it’s going to be here. Lee. --Original Message-- From: [email protected] [mailto:owner; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00207.html (34,812 bytes)
4. Re: LF: Fw: LOST TRACK (score: 1): Author: "Graham" <[email protected]>; Date: Thu, 13 Sep 2012 00:03:28 +0100; Yes Lee, I remember the project , looks very well made , bit of a tom-tit over the 500 to 477 migration , will the filters re-tune ? I have seen 7 MHz AM stations in the usa using eer as high level m; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00283.html (28,884 bytes)
5. RE: LF: Fw: LOST TRACK (score: 1): Author: "Lee Hudson" <[email protected]>; Date: Wed, 12 Sep 2012 23:40:14 +0100; Hi Graham, All, I made an EER PA and Transverter to 3.5MHz for use on 500kHz based on Jim’s first design. And I’m sure there are a few others about. First prototype of Class D PA https://; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00297.html (28,486 bytes)
6. LF: Fw: LOST TRACK (score: 1): Author: "mal hamilton" <[email protected]>; Date: Wed, 12 Sep 2012 17:00:39 +0100; -- Original Message -- From: [email protected] mal hamilton To: [email protected] rsgb Sent: Wednesday, September 12, 2012 2:57 PM Subject: LOST TRACK LF/MF I think most have now lost; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00478.html (10,523 bytes)
7. Re: LF: Fw: LOST TRACK (score: 1): Author: "Clemens Paul" <[email protected]>; Date: Wed, 12 Sep 2012 18:31:33 +0200; amp in linear , with envelope restoration , that maintains the efficiency , s/n >imd is about 35 dB . To my knowledge the first description in amateur literature of an EER (envelope elimination and; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00487.html (12,478 bytes)
8. Re: LF: Fw: LOST TRACK (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Thu, 13 Sep 2012 00:50:55 +0200; Hi Lee, These are very nice pictures! And proffessional work! I've never done so, all my rigs are prototypes ;-) It's also nice the see the stuff lying arround there. I see i'm not the only one :-) S; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00503.html (14,970 bytes)
9. Re: LF: Fw: LOST TRACK (score: 1): Author: "Graham" <[email protected]>; Date: Wed, 12 Sep 2012 18:23:27 +0100; Deutsche Welle ! From: [email protected] Stefan Schäfer Sent: Wednesday, September 12, 2012 5:57 PM To: [email protected] Subject: Re: LF: Fw: LOST TRACK ... i'm on the; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00684.html (16,243 bytes)
10. Re: LF: Fw: LOST TRACK (score: 1): Author: "Graham" <[email protected]>; Date: Thu, 13 Sep 2012 00:20:12 +0100; Ok , Lee The RIG .... That could be a problem for some ? Well we assume the uk will have the same band as over the boarder ! but ....you never know Sad smile emoticon Sad smile emoticon G.. From: Lee; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00717.html (34,935 bytes)
11. Re: LF: Fw: LOST TRACK (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Wed, 12 Sep 2012 18:57:08 +0200; ... i'm on the way to built such a modulator too. Schemtic is ready (draft) and parts have been ordered today! For 400W it may be easy but... Another part of that new power supply will be a CCM PFC u; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-09/msg00750.html (16,258 bytes)

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