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41. [Amps] Parasites (parasitics) (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Mar 26 23:35:45 2003; Any "doubting Thomases" can do an easy experiment. Just breadboard up a circuit with a glass tube sans suppressors, and observe the results. I don't think anyone could possibly deny the existence of; /archives//html/Amps/2003-03/msg00861.html (9,512 bytes)
42. [Amps] Filament Inrush Control (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Mar 28 15:41:59 2003; When I design from scratch with a typical step-start circuit, I adjust the delay on the relay until the reading on the HV meter is 2/3 the way up to normal value. By this time, all surges are over,; /archives//html/Amps/2003-03/msg00912.html (9,421 bytes)
43. [Amps] The National R-175A (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sat Mar 29 14:22:35 2003; It would be interesting if you could remake your measurements with the choke sitting in a box simulating an RF deck, and note the changes for this model. Thanks, Phil, K5PC; /archives//html/Amps/2003-03/msg00928.html (6,567 bytes)
44. [Amps] Ameritron QSK-5PC replacement Fuse Lamps (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sat Mar 29 15:31:58 2003; Great info, Jim! I have printed out your post and inserted it in my QSK-5 manual. No bulb problems here yet, but RS is just down the road in case I ever need to change them. (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00932.html (7,571 bytes)
45. [Amps] Capacitor checker (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sun Mar 30 17:04:13 2003; I have been using mine for years here. Sits at a promanant spot on my work bench. Also, roller coils can be quickly set to the desired L, as well as setting up tank circuits in a jiffy. (((73))) Phi; /archives//html/Amps/2003-03/msg00948.html (8,203 bytes)
46. [Amps] Filter cap for Henry 2k-3 (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Mon Mar 31 00:16:08 2003; Sage advice below, Bill. This cap. is used to tune your filter choke. Both the value and voltage rating are fairly critical for that famous Henry regulation. (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00955.html (7,794 bytes)
47. [Amps] Sell: Eimac YC-156 (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Mon Mar 31 09:47:31 2003; Very low hours, tested in test jig with test results furnished. This tube is 100%. Going on E-Bay with it next Sunday. Date code: 21st week of 2000. (((73))) Phil, K5PC; /archives//html/Amps/2003-03/msg00958.html (6,225 bytes)
48. [Amps] Capacitance Amount Formula (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sun Feb 9 13:19:34 2003; When designing a HV PSU is there a reccomended formula for determing the total amount of capacitance required in the filter.. I have not seen much discussion on this subject and now I am about to des; /archives//html/Amps/2003-02/msg00207.html (9,262 bytes)
49. Spam Alert: Re: [Amps] The Philosophy of Science (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Tue Feb 11 13:25:01 2003; I had a ground school instructor in the good old days when I was a pilot for Braniff I'ntl. Airways. One of his favorite sayings when someone in the class pushed for more exact details on a subject; /archives//html/Amps/2003-02/msg00256.html (8,785 bytes)
50. [Amps] Cheap 1500 Watt Amps? (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Feb 14 07:53:11 2003; We have all been waiting for this gem for years! There is no such thing as a free lunch, Dan. There is no such thing as cheap, reliable, and 1500 watts out, key down. Truly an oxymoron, IMO. (((73)); /archives//html/Amps/2003-02/msg00319.html (7,091 bytes)
51. [Amps] 1920V @ 2.0 KVA transformer on eBay (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Feb 14 09:19:35 2003; Off the top of my head, "ball park" would be 5376 volts @ 372 ma. Regulation is another story, depending on how much the beast weighs, and other factors. (((73))) Phil, K5PC; /archives//html/Amps/2003-02/msg00323.html (6,973 bytes)
52. [Amps] Info on 8877's (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Feb 19 01:39:35 2003; This was not a good year for Eimac. Most 8877's of this vintage were recalled and destroyed due to a "heat dam problem." I would check with Eimac to see if the two dates were affected by the recall.; /archives//html/Amps/2003-02/msg00371.html (6,835 bytes)
53. [Amps] Power transformer (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Feb 19 18:33:35 2003; If this is a normal dual-primary, the two windings go in parallel for 120 volts, and in series fro 240 volt operation. They must be hooked up in the correct phase relationship, or the windings will; /archives//html/Amps/2003-02/msg00381.html (7,216 bytes)
54. [Amps] lamps (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sun Feb 23 16:46:09 2003; I have had good luck in the past going to hobby shops where model trains are sold. Phil, K5PC; /archives//html/Amps/2003-02/msg00419.html (6,839 bytes)
55. [Amps] KNOB ORIENTATION (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Mon Feb 24 18:54:16 2003; The plates are set at full-mesh, and the pointer is set to zero. Zero=minimum loading and 100=maximum loading. (((73))) Phil, K5PC; /archives//html/Amps/2003-02/msg00442.html (7,688 bytes)
56. [Amps] Converting Henry 2002A or 2004A to 222 MHz (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Wed Feb 26 13:24:21 2003; I have had the pleasure of doing business with Ted Henry and Paul Johnson for 20 years or so. Although I am small potatoes to Henry, I have been treated like royalty. I have experienced their warran; /archives//html/Amps/2003-02/msg00481.html (7,863 bytes)
57. [Amps] HV Filter Caps Source (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Feb 28 12:04:41 2003; I'd replace both. Really sage advice. I always replace all power supply components in these old amps when something fails. It saves having to go back in later, tearing into it again, and saves a lot; /archives//html/Amps/2003-02/msg00511.html (7,199 bytes)
58. [Amps] Use of stainlees steel in RF environment (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Fri Feb 28 12:11:41 2003; I have seen and played with many commercial grade amps and RF generators over the years, Bob, from several different manufacturers. They all used brass hardware throughout the RF deck. Your Elmer is; /archives//html/Amps/2003-02/msg00512.html (7,086 bytes)
59. [Amps] Tube Autopsy (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Tue Jan 28 11:46:42 2003; I hate to hear this, Rich. There is a good chance you are in violation of EPA and OSHA regulations, among others. It is blatant acts like these that have thrown our planet into certain premature doo; /archives//html/Amps/2003-01/msg00268.html (8,104 bytes)
60. [Amps] Parting out 20Kw FM Tx (score: 173): Author: philk5pc at tyler.net (Phil Clements); Date: Sat Aug 2 20:43:02 2003; The center winding is left unconnected at both primary and secondary ends. The two outer secondarys are connected to a full-wave bridge rectifier stack. The two outer primaries are wired in parallel; /archives//html/Amps/2002-09/msg00301.html (7,185 bytes)

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