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21. [Amps] Metron "Magnus" MA1000B, Henry SS-750, Henry SS-1200 (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 5 15:51:15 2003; I used to be a distributor for Metron. A word of caution....there is a group of 2 watt resistors used as an attenuator in the input circuit. If more than c. 65 watts RF drive is applied to the input; /archives//html/Amps/2003-03/msg00204.html (7,918 bytes)
22. [Amps] Henry 3k classic X MkII (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 5 16:01:21 2003; Try calling up Ford or GM asking for help in installing a 1000 HP motor in your SUV. I think the Henry comment was unfair, IMO. (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00205.html (6,810 bytes)
23. [Amps] Alpha 86 (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 5 22:02:57 2003; Anyone who has built a Heath SB-1000 is very familiar with the corona washer. It is included with the kit. Perhaps one can download the manual from BAMA or somewhere if you want to see pictorials an; /archives//html/Amps/2003-03/msg00226.html (10,131 bytes)
24. [Amps] MRF150 based 1500 watt amp design/cost (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 5 22:10:25 2003; one sheet of paper. for a fairly clean 600 watt HF amplifier based on 4 MRF150 transistors. that, with some modification, should be able to handle 1.5 KW. watt amp modules from EB104, you would have; /archives//html/Amps/2003-03/msg00227.html (9,401 bytes)
25. [Amps] MRF150 based 1500 watt amp design/cost (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Thu Mar 6 07:54:01 2003; Most designs are 50 ohms in/out. You need a broad band filter that has a sharp cut-off above the band in use. Then you can add your antenna tuners etc. after the filter. (((73))) Phil K5PC; /archives//html/Amps/2003-03/msg00252.html (8,556 bytes)
26. [Amps] Use of Manual T/R Switches (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Thu Mar 6 21:57:58 2003; I hear you, Merv! One of my most memorable experiences I have as a teenager is when I hooked up my new Johnson T-R switch and achieved the infamous "WATV Award" in a few moments time. The neighborho; /archives//html/Amps/2003-03/msg00280.html (9,367 bytes)
27. [Amps] FS: 600 WATT SOLID STATE PA UNITS (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sat Mar 8 14:25:55 2003; I have played with several 1 kw plus SS RF generators. I have found that the transformers are all centered around 13.5 mhz, and very narrow-banded as Norm says. With a few mods, the power supplies a; /archives//html/Amps/2003-03/msg00343.html (8,637 bytes)
28. [Amps] Silly idea? (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Mon Mar 17 16:50:56 2003; One of the main issues is inrush current, Steve. This is the reason most light bulbs fail upon turn-on. If the filament transformer is designed properly for the tube(s)being powered, the inrush curr; /archives//html/Amps/2003-03/msg00647.html (8,926 bytes)
29. [Amps] WTB Millen H.V. connectors (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Tue Mar 18 10:31:51 2003; Millen is alive and well in Mass. Why not order what you want? The connectors were around $8 per set the last time I ordered some. You want the red or black, as the yellow ones are not rated for as m; /archives//html/Amps/2003-03/msg00672.html (7,303 bytes)
30. [Amps] Problems with 3cx3000 amp (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Mar 21 14:57:49 2003; We need to know the anode current you propose to run so a calculation on tank values can be made. (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00760.html (7,528 bytes)
31. [Amps] Problems with 3cx3000 amp (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Mar 21 19:44:39 2003; Sage advise.... This tube requires a suppressor. (inductance only, no resistor needed) Rich's price is right, or you can order a suppressor from Henry Radio that is used on the 8-K Ultra. If you are; /archives//html/Amps/2003-03/msg00763.html (7,702 bytes)
32. [Amps] Hard-drive Dive (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sat Mar 22 21:12:35 2003; I do not have all of the editions, but it was after the fifteenth edition of Bill Orr's Handbook that parasitic suppressors started appearing on ceramic tube amp projects therein. There are even pro; /archives//html/Amps/2003-03/msg00783.html (9,269 bytes)
33. [Amps] Hard-drive Dive (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sun Mar 23 14:27:28 2003; It sure had an effect on external "big bangs," band switch cooking, and choke fires. IMO, the average ham with little test equipment cannot tell if an event was VHF, HF, or DC related at first glanc; /archives//html/Amps/2003-03/msg00796.html (8,737 bytes)
34. [Amps] RF-110A Help... (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sun Mar 23 21:27:26 2003; Mike was MOST helpful to me in getting my 2-110A's on the air...great stuff! More helpful was obtaining a service manual off E-Bay which allowed me to fully understand the beast, and enabled retuning; /archives//html/Amps/2003-03/msg00804.html (8,237 bytes)
35. [Amps] Hard-drive Dive (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Mon Mar 24 09:06:33 2003; All my choke fires have been HF related. Trying to use 5 band amp on a WARC band without dipping first. I have never had an R-sup problem as all of mine are Carborundum units. (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00809.html (8,728 bytes)
36. [Amps] Hard-drive Dive (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Mon Mar 24 11:19:54 2003; ** The tradeoff with Carborundum/Globar ® units is that they have a bit much intrinsic L for optimal VHF suppression service. To explain: To exhibit good suppression, the inductances of the R and; /archives//html/Amps/2003-03/msg00811.html (9,221 bytes)
37. [Amps] Hard-drive Dive (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Tue Mar 25 20:45:49 2003; The 175A is not a pi-wound choke. Describe yours a little further, and I'll run it down for you in the National catalog. I expect you have an R-152 or R-154. The R-175A should not have resonances in; /archives//html/Amps/2003-03/msg00827.html (8,276 bytes)
38. [Amps] Filament Inrush Control (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Tue Mar 25 21:07:08 2003; The Emtron DX-2 Alek is talking about uses a 4CX1600B. There is no choice on the step-start because there is only one transformer that supplies everything in the amp. The PS filter contains 58 mfd w; /archives//html/Amps/2003-03/msg00828.html (8,285 bytes)
39. [Amps] Filament Inrush Control (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 26 00:24:49 2003; I happen to know for a fact that the "grate parasitic debate" was closely followed by the folks at Emtron, as well as other posts here on the reflector that ended up incorporated into their products; /archives//html/Amps/2003-03/msg00833.html (9,238 bytes)
40. [Amps] Henry 2K-D (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 26 00:59:32 2003; Does the Henry manual list the value of the choke? If not, why not just call Ted and ask him? (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00835.html (6,849 bytes)

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