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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+2\s+kW\s+amp\s+project\s*$/: 18 ]

Total 18 documents matching your query.

1. [Amps] 2 kW amp project (score: 1)
Author: PA3DUV <pa3duv@planet.nl>
Date: Sun, 20 Nov 2005 09:04:28 +0100
Please elaborate a bit on this new 2 kW amp project Bill. What Vcc, which power devices, how many modules, what splitter/combiner solution etc.. Cheers, Dick Knol PA3DUV _____________________________
/archives//html/Amps/2005-11/msg00364.html (11,954 bytes)

2. Re: [Amps] 2 kW amp project (score: 1)
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Sun, 20 Nov 2005 12:35:08 +0100 (CET)
There's an interesting article on a 1500 watt Class E amp in the latest QEX. Looking at it, the thing is that by the time you've got the mechanics done (including a fearsome output transformer with s
/archives//html/Amps/2005-11/msg00367.html (6,899 bytes)

3. Re: [Amps] 2 kW amp project (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Sun, 20 Nov 2005 07:58:21 -0800
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Not being a QEX subscriber (maybe I should be) I'd like to hear more about it. I considered a SS amp before beginning my current 8877 project but was
/archives//html/Amps/2005-11/msg00372.html (7,764 bytes)

4. Re: [Amps] 2 kW amp project (score: 1)
Author: "Peter Voelpel" <df3kv@t-online.de>
Date: Sun, 20 Nov 2005 18:24:32 +0100
Hi Peter, Is it also the same weight? There are also pretty small vacuum variables around, much smaller then any breadslicer 73 Peter There's an interesting article on a 1500 watt Class E amp in the
/archives//html/Amps/2005-11/msg00374.html (7,927 bytes)

5. Re: [Amps] 2 kW amp project (score: 1)
Author: PA3DUV <pa3duv@planet.nl>
Date: Sun, 20 Nov 2005 18:33:26 +0100
Hey Bill, we're all waitin' for ya Dick PA3DUV _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-11/msg00375.html (10,932 bytes)

6. Re: [Amps] 2 kW amp project (score: 1)
Author: "wc6w@juno.com" <wc6w@juno.com>
Date: Sun, 20 Nov 2005 17:54:45 GMT
<snip> Hi Bill, Item #1 is easy. Get a surplus 48V switching power supply from the telecom world. My best suggestion for #2 is a dual pi-net. 50 ohms to 500-1000 ohms back to 25-100 ohms. This provid
/archives//html/Amps/2005-11/msg00377.html (8,412 bytes)

7. Re: [Amps] 2 kW amp project (score: 1)
Author: R.Measures <r@somis.org>
Date: Sun, 20 Nov 2005 10:18:41 -0800
... but never as reliable. Richard L. Measures, AG6K, 805.386.3734. www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mai
/archives//html/Amps/2005-11/msg00381.html (8,680 bytes)

8. Re: [Amps] 2 kW amp project (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Sun, 20 Nov 2005 16:47:51 -0800
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Sounds good. I almost wish I hadn't started the 8877 project but it's too far along to stop now. :-) Where does one find the surplus telecom supplies
/archives//html/Amps/2005-11/msg00390.html (8,147 bytes)

9. Re: [Amps] 2 kW amp project (score: 1)
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Mon, 21 Nov 2005 09:36:30 +0100 (CET)
The article in QEX was not a simple multi band device, although I suppose it could eventually get to that. It uses a lot of cheap FETs, and goes up to 7 MHz. Going up to 28MHz with cheap FETs may not
/archives//html/Amps/2005-11/msg00394.html (10,425 bytes)

10. Re: [Amps] 2 kW amp project (score: 1)
Author: PA3DUV <pa3duv@planet.nl>
Date: Mon, 21 Nov 2005 10:24:41 +0100
Peter, The weight of an Icom PW1 solid state power amplifier (1 kW out) is 25 kg@ 1000 watt output (40 watt/kg) The weight of an Emtron DX2 twin GU74B tube amp is 27 kG @ 1500 watt output. (56 watt/k
/archives//html/Amps/2005-11/msg00395.html (12,498 bytes)

11. Re: [Amps] 2 kW amp project (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Mon, 21 Nov 2005 10:42:24 +0100
I'm building a 1KW 144MHz amp based on 4xMRF151G and a massive 50V/49A SMPSU (again surplus telecom). Total weight is less than 18Kg (all components at hand and factored in), 42x45x18cm excluding han
/archives//html/Amps/2005-11/msg00396.html (15,021 bytes)

12. Re: [Amps] 2 kW amp project (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 21 Nov 2005 10:07:36 +0000
..And (a very big 'and') the SMPS means it will deliver full power and linearity when running from a generator, something that most valve amps (with cap input psu) fail to do unless the genny is way
/archives//html/Amps/2005-11/msg00397.html (8,401 bytes)

13. Re: [Amps] 2 kW amp project (score: 1)
Author: "wc6w@juno.com" <wc6w@juno.com>
Date: Mon, 21 Nov 2005 15:41:01 GMT
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hi Bill, Your 8877 will be better (simpler & more economical to assemble, lower distortion, greater reliablity) than almost any transistorized thing
/archives//html/Amps/2005-11/msg00399.html (9,360 bytes)

14. Re: [Amps] 2 kW amp project (score: 1)
Author: PA3DUV <pa3duv@planet.nl>
Date: Mon, 21 Nov 2005 17:55:12 +0100
Peter, <18 kg for a 1000 watt unit including the SMPSU is great. Keep that shack door shut as the amp otherwise gets blown off your desk ;-) Cheers, Dick Knol PA3DUV _________________________________
/archives//html/Amps/2005-11/msg00401.html (16,786 bytes)

15. Re: [Amps] 2 kW amp project (score: 1)
Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>
Date: Mon, 21 Nov 2005 09:13:17 -0500
The class e Amplifier project can be down loaded for free by going to the ARRL QEX site. Then down load the sample article for Nov/Dec. Pictures in color. This is my article and it makes 5 KW peak ea
/archives//html/Amps/2005-11/msg00403.html (9,585 bytes)

16. Re: [Amps] 2 kW amp project (score: 1)
Author: "Peter Voelpel" <df3kv@t-online.de>
Date: Mon, 21 Nov 2005 20:40:30 +0100
Hi Frank, What did you wrong with your 4CX3000A amplifier? 73 Peter The class e Amplifier project can be down loaded for free by going to the ARRL QEX site. Then down load the sample article for Nov/
/archives//html/Amps/2005-11/msg00407.html (8,604 bytes)

17. Re: [Amps] 2 kW amp project (score: 1)
Author: "Bert" <balmemo@sympatico.ca>
Date: Mon, 21 Nov 2005 15:43:31 -0500
Can't find the article by WA1GFZ on QEX. Please advise. Thanks. 73 Bert, VE3OBU --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On Behalf Of Peter Voelpel
/archives//html/Amps/2005-11/msg00409.html (9,313 bytes)

18. Re: [Amps] 2 kW amp project (score: 1)
Author: PA3DUV <pa3duv@planet.nl>
Date: Tue, 22 Nov 2005 07:13:56 +0100
That's right Pat, but in the same time I can match most antennas with the tank coil of the Emtron DX4 as well, though no automatic. However, on the band one can notice the difference between the PW1
/archives//html/Amps/2005-11/msg00425.html (15,775 bytes)

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