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141. [Amps] How light can you make a 500W amplifier? (score: 1): Author: 2@vc.net (Rich); Date: Tue, 15 Oct 2002 21:03:18 -0700; ** I don't know how to go about calculating the ripple or how to size the capacitors for a quadrupler ps. My estimate of 8 caps per quadrupler assumed that some seriesing and paralleling will be nee; /archives//html/Amps/2002-10/msg00141.html (12,439 bytes)
142. [Amps] Re: Quadrupler.... light 500w amp (score: 1): Author: 2@vc.net (Rich); Date: Wed, 16 Oct 2002 04:13:00 -0700; Sounds like the Joe Jennings article. Indeed. Do you think it feasable to connect two quadruplers in series? cheerz, Jim - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00160.html (6,623 bytes)
143. [Amps] How light can you make a 500W amplifier? (score: 1): Author: 2@vc.net (Rich); Date: Wed, 16 Oct 2002 05:06:23 -0700; Steve's 0-volt prediction sounds a tad fishy. Would it be possible to put two quadruplers in series if they were powered by the same source? - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00161.html (9,790 bytes)
144. [Amps] Alpha 87A amp (score: 1): Author: 2@vc.net (Rich); Date: Wed, 16 Oct 2002 20:44:38 -0700; Did either 87A require return to Alpha? If so, what were the symptoms? tnx - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00174.html (12,818 bytes)
145. [Amps] Re: super cathode (score: 1): Author: 2@vc.net (Rich); Date: Thu, 17 Oct 2002 05:18:28 -0700; ** 4 is x4 or 6db - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00185.html (6,672 bytes)
146. [Amps] How light can you make a 500W amplifier? (score: 1): Author: 2@vc.net (Rich); Date: Thu, 17 Oct 2002 05:18:27 -0700; then perhaps a 4cx800 or 4cx1600 ? ur welcome. cheers,Alan - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00186.html (9,422 bytes)
147. [Amps] TL-922A questions (score: 1): Author: 2@vc.net (Rich); Date: Thu, 17 Oct 2002 21:05:08 -0700; If you want to discuss the 922, phone me. The 922 does not have a hv-ps that is designed for carrier/locked key operation. A keyer sending 50wpm dits is a better way to go. When a tube shorts, the un; /archives//html/Amps/2002-10/msg00194.html (8,172 bytes)
148. [Amps] Voltage-Quadrupler Calculations (score: 1): Author: 2@vc.net (Rich); Date: Fri, 18 Oct 2002 18:53:03 -0700; ** Upon inspection of the voltage-quadrupler/rectifier-filter circuit diagram, it appears that the ripple currents in the 4-capacitors are different. If this be the case, it would seem that the capac; /archives//html/Amps/2002-10/msg00197.html (6,414 bytes)
149. [Amps] HV-Breakdown Tester Transformer For Sale (score: 1): Author: 2@vc.net (Rich); Date: Fri, 18 Oct 2002 18:53:03 -0700; High-pot tester transformer, 115vac primary, 15kV, 30mA secondary, Jefferson Elec., potted, glazed porcelain insulators, current-limiting type/short-proof. Using variac in pri. - with FWD, 0V-42kVDC; /archives//html/Amps/2002-10/msg00198.html (6,515 bytes)
150. [Amps] WINDING TANK COILS ......HELP (score: 1): Author: 2@vc.net (Rich); Date: Fri, 18 Oct 2002 19:52:22 -0700; MFJ's head-engineer, Tom Rauch said it doesn't dip right. - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00204.html (8,585 bytes)
151. [Amps] 4-400A Anode Voltage??? (score: 1): Author: 2@vc.net (Rich); Date: Sun, 20 Oct 2002 20:57:48 -0700; I have heard of 5kV for SSB only using g-g config. However, tuning up with pulses or dits is probably not a bad idea. Also, more anode-V yields more gain. This is both good and not good, so one shoul; /archives//html/Amps/2002-10/msg00217.html (8,338 bytes)
152. [Amps] 3CX3000F7 idle current (score: 1): Author: 2@vc.net (Rich); Date: Mon, 21 Oct 2002 21:52:46 -0700; 400mA would be enough zsac. - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00227.html (7,209 bytes)
153. [Amps] AL-1500 (score: 1): Author: 2@vc.net (Rich); Date: Wed, 23 Oct 2002 17:16:55 -0700; José -- My guess is that the meter was damaged by something that also did other damage. Are there 3A glitch diodes across the meter movement? Does the AL-1500 have a VHF parasitic suppressor i; /archives//html/Amps/2002-10/msg00236.html (7,818 bytes)
154. [Amps] AL-1500 (score: 1): Author: 2@vc.net (Rich); Date: Wed, 23 Oct 2002 17:57:54 -0700; ** striking in the middle of the contest would have been a bit more in character - but maybe he was in a charitable mood ? cheerz, Peter - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00239.html (6,718 bytes)
155. [Amps] RE: 4CX800A Grounded Grid (score: 1): Author: 2@vc.net (Rich); Date: Wed, 23 Oct 2002 19:43:30 -0700; ** it will. A pair of 3-500Zs will drive one to c. 18 out with a 9kV anode supply. - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00241.html (6,674 bytes)
156. [Amps] 8877 RF generator info needed (score: 1): Author: 2@vc.net (Rich); Date: Fri, 25 Oct 2002 02:15:37 -0700; Sounds like Dick E. ... - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00252.html (6,741 bytes)
157. [Amps] Good Way To Test A Plate Transformer ? (score: 1): Author: 2@vc.net (Rich); Date: Fri, 25 Oct 2002 18:36:07 -0700; The transformer alone would blow fuses if it had a short. Operate it with nothing connected to the secondary and measure the primary current. If the primary current is under 1A, (or it doesn't blow; /archives//html/Amps/2002-10/msg00264.html (7,966 bytes)
158. [Amps] Why do people post to individual and AMPS ? (score: 1): Author: 2@vc.net (Rich); Date: Fri, 25 Oct 2002 19:31:43 -0700; Although it has seldom been a problem on AMPS, there are contesting.com mailing lists that are moderated (censored) by wannabe controllers who seem to have covert agendas and/or a lust for dominion.; /archives//html/Amps/2002-10/msg00266.html (7,884 bytes)
159. [Amps] Regulated HV? (score: 1): Author: 2@vc.net (Rich); Date: Tue, 29 Oct 2002 20:17:38 -0800; Regulated HV does nothing other than improve pep during berserko speech processing. Regulated anode supply V does not improve linearity. However, regulated screen V does. I built a regulated 6kV sup; /archives//html/Amps/2002-10/msg00301.html (7,016 bytes)
160. [Amps] Regulated HV? (score: 1): Author: 2@vc.net (Rich); Date: Wed, 30 Oct 2002 01:02:10 -0800; Because a tube's linearity does not change much even a 25% anode-V change. bingo - Rich..., 805.386.3734, www.vcnet.com/measures.; /archives//html/Amps/2002-10/msg00304.html (8,659 bytes)

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