Search String: Display: Description: Sort:

Results:

References: [ +from:alex@mail.sandlabs.com: 62 ]

Total 62 documents matching your query.

21. [Amps] FS: Ten-Tec Hercules 2 solid state amp++ (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Tue, 16 Jul 2002 14:49:27 -0400
or, better yet needs 50V/15A when using two MRF154. I need to confess. Once you get a taste for these transistors there is no way back to tubes :) Alex
/archives//html/Amps/2002-07/msg00226.html (8,264 bytes)

22. [Amps] FS: Ten-Tec Hercules 2 solid state amp++ (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Tue, 16 Jul 2002 17:32:43 -0400
This is easy... Just use a $2.50 Butane Torch. They'll get red fast ... If this is what you want your amplifier to do :) Are you living beyond the 90 degree circle ? Alex
/archives//html/Amps/2002-07/msg00230.html (10,101 bytes)

23. [Amps] Bias Zener Diodes In Parallel ?++/2 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Tue, 16 Jul 2002 19:56:25 -0400
You can use a 2-5A Linear Regulator too :) It allows you to adjust the voltage to the point where your want it :) Alex
/archives//html/Amps/2002-07/msg00233.html (8,965 bytes)

24. [Amps] KW Linear for FT-817 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Wed, 17 Jul 2002 10:00:20 -0400
If you use two MRF157 transistors you can get 1,5KW SSB with only 25W of drive. And you get the amp in a 11/4/7 inches box :) Alex
/archives//html/Amps/2002-07/msg00242.html (9,343 bytes)

25. [Amps] KW Linear for FT-817 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Wed, 17 Jul 2002 10:50:09 -0400
Corect! However you du use some forced air cooling ... 2 Fans of 145CFM will do the trik :) But this was not what the gentlemen asked :) Alex
/archives//html/Amps/2002-07/msg00248.html (9,618 bytes)

26. [Amps] Thermal Management in SS Amps. (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Wed, 17 Jul 2002 11:10:13 -0400
As it has been inferred here, SS Amps can produce a lot of heat. Not that is more that an Ceramic tube running at 200 deg C but rather it is concentrated in a very small area. Two MRF154 will create
/archives//html/Amps/2002-07/msg00250.html (8,116 bytes)

27. [Amps] Thermal Management in SS Amps. (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Wed, 17 Jul 2002 12:00:39 -0400
NOVA Mechanics... Quins, NY Alex
/archives//html/Amps/2002-07/msg00254.html (7,462 bytes)

28. [Amps] Re: KW Linear for FT-817 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Wed, 17 Jul 2002 12:16:13 -0400
It seems a lot of work for only 1.5KW :( Alex
/archives//html/Amps/2002-07/msg00255.html (7,870 bytes)

29. [Amps] Nice big Plate transformer fs++ (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Wed, 17 Jul 2002 19:57:06 -0400
with so many BIG transformer claims, how come I can not find the one I need? 4500VAC/2A ??? Alex
/archives//html/Amps/2002-07/msg00273.html (9,045 bytes)

30. [Amps] ENI LPI-10 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Thu, 18 Jul 2002 01:03:56 -0400
Nice :) XCELENT, Dude ! But what is a ENI LPI-10? Alex
/archives//html/Amps/2002-07/msg00281.html (7,387 bytes)

31. [Amps] ENI LPI-10 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Thu, 18 Jul 2002 12:23:56 -0400
Hi Dude, Again :) Well, if one want's to sell something, it's good to tell people what it is, IMHO :) In respect the quoted paragraph, I believe we had an encounter with them, but they were not able
/archives//html/Amps/2002-07/msg00291.html (10,149 bytes)

32. [Amps] Nice big Plate transformer fs++ (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Thu, 18 Jul 2002 12:27:18 -0400
Please observe Phil, I just ignored this "advice". TWICE :) Alex
/archives//html/Amps/2002-07/msg00292.html (10,116 bytes)

33. [Amps] Bias Zener Diodes In Parallel ?++ (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Thu, 18 Jul 2002 23:33:34 -0400
Here is an idea that one could use :) Instead ZENERS use a DC amplifier offset to the voltage you need for the proper tube biasing. Now you can add audio to it and you have created an XCELENT AM tran
/archives//html/Amps/2002-07/msg00305.html (10,682 bytes)

34. [Amps] BIG Audio Amp. OT. (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Sat, 20 Jul 2002 15:40:56 -0400
Those audio guys are really out of this world :) I've been invited to see a BIG audiophile installation... 150KW of audio pump!!! THIS was something! The Amps weigh 1500Kg each and are 20 of them:) r
/archives//html/Amps/2002-07/msg00364.html (7,687 bytes)

35. [Amps] BIG Audio Amp. OT./2 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Sat, 20 Jul 2002 23:13:19 -0400
WRONG! As I give the initial weight in MKGS (metric) system then the weight of one amp will be 1.5 tons! Total weight is then only 1.5x20 or 30Tons ! You are of by 3 Tons :) Hope you are not part the
/archives//html/Amps/2002-07/msg00370.html (7,804 bytes)

36. [Amps] Alex BS (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Sun, 21 Jul 2002 08:59:40 -0400
Bill ... Your message had a virus attached! Clean your computer! Alex
/archives//html/Amps/2002-07/msg00373.html (7,585 bytes)

37. [Amps] Muffin Fans and hot exhaust++ (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Sun, 21 Jul 2002 21:04:06 -0400
Ohhh.... What an aberration! Blowers are made to work against a specifically front and/or back pressure ... Change this and you are out of air flow ! If you do not belive me and/or the best answer is
/archives//html/Amps/2002-07/msg00390.html (8,693 bytes)

38. [Amps] Muffin Fans and hot exhaust/2 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Mon, 22 Jul 2002 22:53:23 -0400
If you value your output device, you will stop playing hooky with the most important device of your amp, the heat exchanger (blower/fan etc.. etc.. etc...) The best solution for Fans is a DC operated
/archives//html/Amps/2002-07/msg00412.html (9,508 bytes)

39. [Amps] Muffin Fans and hot exhaust/3 (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Tue, 23 Jul 2002 08:24:16 -0400
Processors are cheap and reliable. I can remember when I had to content with reliability issue in 1980 when at Turret Equipment Corp I have designed the First Key Telephone System using solid state s
/archives//html/Amps/2002-07/msg00418.html (13,622 bytes)

40. [Amps] Muffin Fans and hot exhaust/3a (score: 1)
Author: alex@mail.sandlabs.com (alex)
Date: Tue, 23 Jul 2002 08:43:53 -0400
To bond, you need to machine first... Those that have asked in private have gotten the answer long ago :) Alex
/archives//html/Amps/2002-07/msg00421.html (8,091 bytes)


This search system is powered by Namazu