Mail Archive Search: <+from:alex@sandlabs.com>

Results:

References: [ +from:alex@sandlabs.com: 43 ]

Total 43 documents matching your query.

1. [Amps] Need Power :) (score: 1): Author: alex@sandlabs.com (Alex); Date: Sun, 26 May 2002 16:03:49 -0400 (EDT); Looking for a 5000-5500VDC at 2-5A power supply. Thanks Alex; /archives//html/Amps/2002-05/msg00442.html (6,874 bytes)
2. [AMPS] Another Stupid Question (score: 1): Author: alex@sandlabs.com (alex); Date: Sun, 2 Dec 2001 03:19:28 -0500; This is a multi-part message in MIME format. --=_NextPart_000_0029_01C17AE0.27084180 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To fully understand the; /archives//html/Amps/2001-12/msg00007.html (17,315 bytes)
3. [AMPS] Another Stupid Question (score: 1): Author: alex@sandlabs.com (alex); Date: Sun, 2 Dec 2001 23:15:26 -0500; This is a multi-part message in MIME format. --=_NextPart_000_005B_01C17B87.39B74CC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Alex Hi Alex, Not my jo; /archives//html/Amps/2001-12/msg00026.html (13,794 bytes)
4. [AMPS] AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 3 Dec 2001 04:45:48 -0500; A friend of mine, an F3... , (has no internet access) wants to know: Does anyone know what the AL1500 is _really_ capable and under what conditions? I have no experience with it, so perhaps somebody; /archives//html/Amps/2001-12/msg00041.html (6,756 bytes)
5. [AMPS] AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 3 Dec 2001 07:29:23 -0500; Hmmmm... That does not seem to answer my friends question ... However, the parasitic oscillations should be taken care by the grid current measuring system that will shut down the amp if excessive gr; /archives//html/Amps/2001-12/msg00048.html (9,593 bytes)
6. [AMPS] AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 3 Dec 2001 07:32:03 -0500; This is interesting... The tube, I understand, can deliver safely only 1500W. How do you get so much more... And how about cooling... Is the internal blower enough at these power levels ? Alex, N2NNU; /archives//html/Amps/2001-12/msg00049.html (9,643 bytes)
7. [AMPS] AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 3 Dec 2001 08:22:14 -0500; I got the idea from a very special place :) The tube's Data Sheet that recommends a specific set of operational parameters for SSB AB Class. The output is set at 1500W under these conditions. It some; /archives//html/Amps/2001-12/msg00053.html (14,163 bytes)
8. [AMPS] AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 3 Dec 2001 09:40:57 -0500; I guess we got of track! The initial question was about the AL1500 and not the tube. I still do not know what the Amp can _really_ do and how! Alex, N2NNU -- FAQ on WWW: http://www.contesting.com/FAQ; /archives//html/Amps/2001-12/msg00057.html (8,382 bytes)
9. [AMPS] AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 3 Dec 2001 10:01:43 -0500; OK... Thanks... Now, are there any mods that must be made or it will do this out of the box ? Alex, N2NNU not a the -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com; /archives//html/Amps/2001-12/msg00059.html (9,876 bytes)
10. [AMPS] Talking about AL1500 (score: 1): Author: alex@sandlabs.com (alex); Date: Wed, 5 Dec 2001 07:39:35 -0500; As one can see, Ameritron uses the AL1500 chassis for a dual tube amp also. Therefore there is the possibility to modify the amp to have TWO 8877s rather than one. I wonder if any one has done this a; /archives//html/Amps/2001-12/msg00128.html (8,709 bytes)
11. [AMPS] No Blocking Cap :) (score: 1): Author: alex@sandlabs.com (alex); Date: Wed, 5 Dec 2001 07:46:52 -0500; A while ago I had to design an amp which had to have an extremely low second harmonic. The obvious choice was the deployment of a push-pull final stage. As such we have used two 8877 in push-pull, tr; /archives//html/Amps/2001-12/msg00129.html (8,935 bytes)
12. [AMPS] Barrie... (score: 1): Author: alex@sandlabs.com (alex); Date: Fri, 7 Dec 2001 10:07:37 -0500; Please forgive this message as one of the subscribers tries to contact me and can not. Barrie ... I have responded to your mail but MY mail bounces too ... I do not know what the problem is as you ar; /archives//html/Amps/2001-12/msg00173.html (6,678 bytes)
13. [AMPS] Push-Pull 8877 (score: 1): Author: alex@sandlabs.com (alex); Date: Fri, 7 Dec 2001 10:33:22 -0500; Some 7 people have asked about more info about the 8877 Push-Pull (PP) design. This was a commercial design for which the customer has retained all the engineering right. As such I will not be able t; /archives//html/Amps/2001-12/msg00174.html (7,659 bytes)
14. [AMPS] smith chart calculations (score: 1): Author: alex@sandlabs.com (alex); Date: Sun, 9 Dec 2001 23:40:17 -0500; This is a multi-part message in MIME format. --=_NextPart_000_000D_01C1810A.DB487720 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable One of the better freew; /archives//html/Amps/2001-12/msg00182.html (10,874 bytes)
15. [AMPS] SB-200 & 10MHz++ (score: 1): Author: alex@sandlabs.com (alex); Date: Sat, 15 Dec 2001 21:45:44 -0500; I have modified several amps by replacing the conventional Switch/Plate Cap/Inductor/Load Cap with a simple Pi filter. This gets rid of the switch and becomes more reliable. I think it should work wi; /archives//html/Amps/2001-12/msg00231.html (9,474 bytes)
16. [AMPS] SB-200 & 10MHz++/2 (score: 1): Author: alex@sandlabs.com (alex); Date: Sat, 15 Dec 2001 21:52:02 -0500; I forgot. If you do this mod, you do not need an antenna tuner anymore as the tank can now make ANY reactance adaptation needed :) Alex, N2NNU == If we can accept the notion that GUNS are the killers; /archives//html/Amps/2001-12/msg00232.html (11,132 bytes)
17. [AMPS] Transformer Current ratings (score: 1): Author: alex@sandlabs.com (alex); Date: Sat, 15 Dec 2001 22:43:17 -0500; Ian, You have done any work on an SMPS at these high power levels (1KVA to 10KVA) ? I'd would be _very_ interested in such a design :) Alex, N2NNU == If we can accept the notion that GUNS are the kil; /archives//html/Amps/2001-12/msg00235.html (13,975 bytes)
18. [AMPS] PSU program (score: 1): Author: alex@sandlabs.com (alex); Date: Sat, 15 Dec 2001 23:21:40 -0500; I've got to play with the PSU program... It has a serious shortcoming... You can not change the component parameters to what you want, or at least I did not find the way. For example I wanted to chan; /archives//html/Amps/2001-12/msg00237.html (9,558 bytes)
19. [AMPS] Transformer Current ratings (score: 1): Author: alex@sandlabs.com (alex); Date: Sun, 16 Dec 2001 02:56:26 -0500; Agreed, it is no trivial task :) One could say that it is a bit more complex than designing the RF deck it self :) If I may be so bold, Doctor, what kind of Ph.D. you are ? Alex, N2NNU == If we can a; /archives//html/Amps/2001-12/msg00244.html (11,445 bytes)
20. [AMPS] Transformer Current ratings (score: 1): Author: alex@sandlabs.com (alex); Date: Sun, 16 Dec 2001 03:07:26 -0500; Jim, I have not addressed you ! Alex == If we can accept the notion that GUNS are the killers and not the people, why is it that we can not accept the idea that CARS are the speeders and not the driv; /archives//html/Amps/2001-12/msg00246.html (10,484 bytes)

Current List: 1 - 20
Page: [1] [2] [3]