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References: [ +from:francis.carcia@hs.utc.com: 61 ]

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41. Re: [Amps] AC wiring (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 19 Oct 2005 10:08:36 -0400; I use to have #10 wiring to our dryer. That wire warmed up when the thing was running. Yea, #10 is ok for a 30 amp circuit. I changed to #8 then changed the stove to #6. I agree I don't like temperat; /archives//html/Amps/2005-10/msg00457.html (9,138 bytes)
42. Re: [Amps] AC wiring (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 19 Oct 2005 11:05:50 -0400; You can put a 1000 amp pulse down #12 wire. I've seen 10 amps go through wire wrap wire. BUT is an insulation issue too. You don't want the wire to have enough temperature rise that the insulation br; /archives//html/Amps/2005-10/msg00466.html (10,619 bytes)
43. Re: [Amps] AC wiring (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Thu, 20 Oct 2005 08:22:49 -0400; Good question. I'm about to solder all the grounds and splices in the new qth. Then I will install wire nuts. I know you could do it years ago. fc Does the NEC permit connecting Cu wires with Ag-Sn s; /archives//html/Amps/2005-10/msg00483.html (9,896 bytes)
44. Re: [Amps] AC wiring (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Thu, 20 Oct 2005 10:09:03 -0400; I'm checking with a couple guys in the biz to be sure. The new QTH is 1/4 mile from ocean so I would think salt air is an issue. Copper pipes turned dark in a couple weeks after they were installed.; /archives//html/Amps/2005-10/msg00494.html (9,852 bytes)
45. Re: [Amps] Center Tapped Secondary Circuit (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Fri, 21 Oct 2005 10:14:17 -0400; MOV failure mode is a fire cracker and they have a limited life. I assume in the mid 60's MOV's were not as common or not available. It would make sense to prevent it before amplification. I was thin; /archives//html/Amps/2005-10/msg00516.html (8,314 bytes)
46. Re: [Amps] AC wiring (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Fri, 21 Oct 2005 16:45:16 -0400; My head is spinning I ran a 30-amp breaker with a 30-amp Hubbell Twist-Lock socket/connector in the shack. Using approx. 60-feet of #10 AWG in a four-wire configuration. Paul, W9AC .. _______________; /archives//html/Amps/2005-10/msg00523.html (8,448 bytes)
47. Re: [Amps] Diode Identity (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 26 Oct 2005 10:17:17 -0400; The 4007 is rated for 1 KV PIV / 1 amp but I think the 5407 does 1 KV / 3 amps. All packages rely on the lead termination to sink heat from die. Old parts books show the effects of termination method; /archives//html/Amps/2005-10/msg00595.html (9,434 bytes)
48. Re: [Amps] Mobile high power (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Thu, 27 Oct 2005 15:06:26 -0400; Go to arrl site they have a safe distance calculator where you feed numbers in. I know on 10 meters at 70 feet over head and 1500 watts I'm just under the safety limit. like some does. I've seen some; /archives//html/Amps/2005-10/msg00637.html (9,468 bytes)
49. Re: [Amps] Mobile high power (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Fri, 28 Oct 2005 11:27:21 -0400; Just transmit when going down hill The trouble in applying extra battery loads to hybrid vehicles might be that the main battery is matched to the car drive mechanism such that maximum economy and sp; /archives//html/Amps/2005-10/msg00651.html (9,404 bytes)
50. Re: [Amps] Mobile high power (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Tue, 1 Nov 2005 08:32:36 -0500; Gun control....ability to hit the target Up here in Maine most vehicles and some operators are fitted simple mechanical devices that use small amounts of Pb to protect the equipment and operator. Whi; /archives//html/Amps/2005-11/msg00006.html (9,347 bytes)
51. 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)
52. Re: [Amps] hit a wall on bi-directional couplers (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Tue, 22 Nov 2005 11:42:15 -0500; The old ARRL SSB handbook had a schematic of the Collins power meter directional coupler. I built one years ago and set it up with 2 meters. The forward was calibrated 0 to 2000 watts and the reflect; /archives//html/Amps/2005-11/msg00441.html (13,944 bytes)
53. Re: [Amps] MRF448 amp (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 23 Nov 2005 08:12:11 -0500; That amplifier should only be about 50% efficient so for starters your current should be about doubled. A bipolar transistor will only have .6 to .8 volts on the base. Check the temperature of each d; /archives//html/Amps/2005-11/msg00454.html (7,824 bytes)
54. Re: [Amps] B&W FC-30 RFC (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Fri, 2 Dec 2005 12:34:12 -0500; I used one with windings in parallel in a 4-1000A GG linear and it worked fine on 160. Now that you mention, it's dual 15amp windings. So, 10 to 80 and maybe 160. Thanks for the reply. VE3YN ________; /archives//html/Amps/2005-12/msg00010.html (9,183 bytes)
55. Re: [Amps] FC-30 Choke (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Mon, 5 Dec 2005 07:58:08 -0500; Well My 4-1000A Linear works fine on 160 with a FC30. Pi network input circuit. gfz The B&W FC series of chokes were all 3-30 mhz continuous coverage. The ferrite rods were only 3.5 inches long; too; /archives//html/Amps/2005-12/msg00032.html (7,887 bytes)
56. Re: [Amps] FC-30 Choke (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 7 Dec 2005 11:08:17 -0500; I put 2200 ohms in series with 1000 pf each side of the choke to ground. All fil chokes like plate chokes have points where they will make the final oscillate. I also put a 100 ohm in series with 100; /archives//html/Amps/2005-12/msg00065.html (9,259 bytes)
57. Re: [Amps] help diagnosing a bad 8450a probe ? (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Fri, 9 Dec 2005 10:37:17 -0500; 1N5711 is a good choice they sell for about a buck each. 1N7512 will be a bit more sensitive. Matched quads will be quire rare and who knows if it really matters. --Original Message-- From: amps-boun; /archives//html/Amps/2005-12/msg00105.html (8,994 bytes)
58. Re: [Amps] Designing the Cleanest Linear with RF Negative Feedb ack (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Thu, 15 Dec 2005 12:23:54 -0500; Didn't the 30L1 have a third winding on the fil choke where feedback was injected out of phase? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This is a question I've often wondered about. Does a; /archives//html/Amps/2005-12/msg00187.html (8,442 bytes)
59. Re: [Amps] Designing the Cleanest Linear with RF Negative Feedb ack (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Mon, 19 Dec 2005 08:33:39 -0500; Tom, This guy knows what he is talking about. BTW the RA6830 in band is 60 dB. --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On Behalf Of Karl-Arne Marks; /archives//html/Amps/2005-12/msg00259.html (16,680 bytes)
60. Re: [Amps] Clean -vs- Unclean (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Mon, 9 Jan 2006 12:39:55 -0500; That's why we have the ARRL to sort this out for the masses. --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On Behalf Of R.Measures Sent: Monday, January; /archives//html/Amps/2006-01/msg00283.html (9,034 bytes)

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