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141. Re: [Amps] Restoring DX-100 (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sat, 15 Jan 2011 17:30:49 +0000; In several months I shall be doing the very same thing. The procedure I have used in the past is to put a VOM on the high Voltage line and watch the 5R4s and the meter as you increase the AC Voltage,; /archives//html/Amps/2011-01/msg00156.html (9,747 bytes)
142. Re: [Amps] Restoring DX-100 (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sat, 15 Jan 2011 19:42:47 +0000; My DX-100 (with no more than 120 Volts ac coming in) I had 900 Volts on the plates, with every Volt meter that I could find, I know it's not suppose to be that high but is was. 375 unmodulated Watts; /archives//html/Amps/2011-01/msg00159.html (7,765 bytes)
143. Re: [Amps] Firing up a old Tl922 amplifier. (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Fri, 21 Jan 2011 10:07:47 -0500; The 47 Ohm at 50 Watt resistor need be in series with the primary of the plate transformer for only 1/2 second. (after that it does no good) Excuse the top posting. -- Ron KA4INM - I'm proud to be Ch; /archives//html/Amps/2011-01/msg00212.html (9,452 bytes)
144. Re: [Amps] variable capacitors (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Tue, 25 Jan 2011 23:17:33 +0000; Buy him couple of old 833s at a nearby HAMfest and tell him: "Here build a sweet amplifier." -- Ron KA4INM - If you have any criticism for me constructive or otherwise keep it to yourself, at my age; /archives//html/Amps/2011-01/msg00284.html (9,199 bytes)
145. Re: [Amps] amp with push-pull output and magnetic coupling to the antenna (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Fri, 28 Jan 2011 20:03:33 +0000; B&W made "plug in" P-P coil assemblies in 100 Watt and 1,000* Watt sizes, I am looking for a set of each each myself. The coil sets can all be plugged in and relay switched, my plan. 100 Watts is the; /archives//html/Amps/2011-01/msg00386.html (9,948 bytes)
146. Re: [Amps] I answered it. (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sat, 29 Jan 2011 13:36:09 +0000; Hi Steve Cook: A well asked question. I didn't recall the original question. First we are allowed only 200 Watts, so 3dB over a 100 Watt transceiver will not be noticeable. If the "tank" is not reson; /archives//html/Amps/2011-01/msg00396.html (8,206 bytes)
147. Re: [Amps] I answered it. (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sat, 29 Jan 2011 18:04:36 +0000; Thank you Carl: Steve signed a private E-mail to me as: "Clueless in Tucson..." which made me think he is a local. OK. Since 30 meters in not a IARU band, countries can only authorize its use within; /archives//html/Amps/2011-01/msg00400.html (9,813 bytes)
148. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sat, 26 Feb 2011 02:53:30 +0000; I don't know the rig, but can the original meter card be replaced with a thin sheet of plastic and the paper scale clamped over it? -- Ron KA4INM - There is nothing like twelve inches of snow to make; /archives//html/Amps/2011-02/msg00191.html (8,448 bytes)
149. Re: [Amps] Al-82 Blowing fuses? (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Tue, 01 Mar 2011 00:41:36 +0000; If you have a lot of false blows re-think your strategy. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless Loop. -- Random Shack Data Processing Dictionary ___________; /archives//html/Amps/2011-03/msg00003.html (7,789 bytes)
150. Re: [Amps] 4-1000 Bias (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Wed, 02 Mar 2011 12:39:34 -0500; I would start by looking at the data sheets for the tube to see if there are bias curves for 5 or 6 thousand Volts. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless L; /archives//html/Amps/2011-03/msg00021.html (8,003 bytes)
151. Re: [Amps] Alpha 77 start up (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Wed, 02 Mar 2011 12:42:06 -0500; /*snip*/ Is is possible that you got hold of an ac relay? Test it with 24 Volts ac to see. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless Loop. -- Random Shack Data; /archives//html/Amps/2011-03/msg00024.html (7,573 bytes)
152. Re: [Amps] New Alpha 8410 photos + Video (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Wed, 09 Mar 2011 12:42:36 -0500; I have never heard of a HAM tuner with a cooling fan what make and model/s is it? Normally antenna tuners do not absorb enough energy to require cooling. -- Ron KA4INM - Endless Loop: n. see Loop, En; /archives//html/Amps/2011-03/msg00077.html (9,739 bytes)
153. Re: [Amps] Tuner Loss (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sun, 13 Mar 2011 13:58:12 +0000; I think there are losses to everything. (but only in the resistances not in the reactance) I am sure the losses are proportional to the current in the resistance. -- Ron KA4INM - Endless Loop: n. see; /archives//html/Amps/2011-03/msg00096.html (10,111 bytes)
154. Re: [Amps] Adhesive forTeflon sheet.. (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Mon, 21 Mar 2011 12:36:34 -0400; Pop Rivets? -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless Loop. -- Random Shack Data Processing Dictionary _______________________________________________ Amps mai; /archives//html/Amps/2011-03/msg00148.html (7,663 bytes)
155. Re: [Amps] 813 Amplifier Article (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Thu, 31 Mar 2011 08:57:03 -0400; http://www.tubecollector.org/4e27.htm says the 4E27 has a 75 Watts plate dissipation. ??? I believe the 4E27 is more rare than 813s. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless:; /archives//html/Amps/2011-03/msg00290.html (8,955 bytes)
156. Re: [Amps] 4-400A low output, VU3RAZ problem (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Thu, 31 Mar 2011 15:41:22 -0400; My Eimac data sheet (4-400A) says 600 Volts is the absolute maximum screen Voltage and typical operation is 500 Volts so 450 Volts should work. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loo; /archives//html/Amps/2011-03/msg00305.html (7,904 bytes)
157. Re: [Amps] FS: Amplifier Parts (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Fri, 01 Apr 2011 20:01:17 +0000; See: http://validator.w3.org/ http://qsl.net/wc6w/wc6wfsw/index.html?fr20.html -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless Loop. -- Random Shack Data Processing; /archives//html/Amps/2011-04/msg00011.html (7,965 bytes)
158. Re: [Amps] what is a 4 wire 240VAC service? (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Mon, 04 Apr 2011 01:10:58 +0000; 220 Volts has a higher kill rate than 120 Volts, I have two large 240 Volt (3 wire) room heaters and all 3 bedrooms have a 240 Volt outlet, (added since build) so we can use both here. Actually every; /archives//html/Amps/2011-04/msg00054.html (8,617 bytes)
159. Re: [Amps] what is a 4 wire 240VAC service? (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Mon, 04 Apr 2011 11:06:42 -0400; For those outside of the USA the following is how we do it in the U.S.A.: http://en.wikipedia.org/wiki/Split_phase -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless Lo; /archives//html/Amps/2011-04/msg00094.html (9,878 bytes)
160. Re: [Amps] 4 wire 240VAC service? What to do now? (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Mon, 04 Apr 2011 15:43:53 -0400; The neutral buss bar is always insulated, but the screw connecting it to the box is flagged for removal if used as a sub panel. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. s; /archives//html/Amps/2011-04/msg00127.html (8,960 bytes)

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