- 101. Re: [Amps] power supply transformer (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Tue, 30 Jan 2007 15:10:01 -0600
- I covered that about a week ago. BOB DD About, "Why do I need to use a transformer in the first place, can I not simply rectify and filter the two legs of the 240 without a transformer?" A full wave
- /archives//html/Amps/2007-01/msg00336.html (8,347 bytes)
- 102. Re: [Amps] 2 meter AMplifiers: (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Wed, 31 Jan 2007 08:33:38 -0600
- I don't follow you Bruce. Like trade my $3400 pristine Henry 3002 8877 amplifier for a new 8877 in the box? Yeah that sounds like a great deal. Sign me up. ** Use a dual line not a single. While both
- /archives//html/Amps/2007-01/msg00340.html (8,090 bytes)
- 103. Re: [Amps] How best to reduce filament voltage? (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Fri, 2 Feb 2007 10:37:26 -0600
- Jim you missed the key issue this is a ONE TRANSFORMER does all situation. You fire up the high voltage and you don't want that resistor dimming the whole AMPLIFIER.. BOB DD in reply to which is what
- /archives//html/Amps/2007-02/msg00020.html (11,726 bytes)
- 104. [Amps] 220 LINES (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Sun, 4 Feb 2007 10:31:03 -0600
- Here we go again, Subject matter: Power wiring to power amplifiers AKA how to connect a plug to your amplifier. The INFAMOUS NEUTRAL / GROUND comment resurfaces. There is no situation where a Neutral
- /archives//html/Amps/2007-02/msg00038.html (7,787 bytes)
- 105. Re: [Amps] power supply transformer (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Mon, 5 Feb 2007 11:55:32 -0600
- Yes Manfred we have already been past the "All American Five about a week ago. That design would never be UL approved in 2007. It was also the absolutely favorite weapon to murder your spouse from 19
- /archives//html/Amps/2007-02/msg00052.html (22,548 bytes)
- 106. Re: [Amps] 3-500z - intermittent filament (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Tue, 6 Feb 2007 06:04:04 -0600
- Martin, Terry, Group, Good morning guys. Like I have mentioned before when I was back at the RADIO SHOP (Drake Collins Kenwood, Yaesu etc factory service) while in college in the late 70's I had to p
- /archives//html/Amps/2007-02/msg00072.html (11,879 bytes)
- 107. Re: [Amps] 3CV1500A7 (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Tue, 6 Feb 2007 08:54:37 -0600
- OH too bad, there was a brand new one in the box on eBay last month. BOB DD Hi: A very good friend and my elmer has an Alpha PA-70V and he needs to replace the famous and almost disappear 3CV1500A7.
- /archives//html/Amps/2007-02/msg00074.html (7,128 bytes)
- 108. [Amps] Water Types (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Tue, 6 Feb 2007 11:36:24 -0600
- Guys... OK I have a little experience here and time to pipe up. This exact post went to the other reflector last week (almost same topic came up we were discussing Water cooled Dummy loads instead of
- /archives//html/Amps/2007-02/msg00086.html (11,564 bytes)
- 109. Re: [Amps] WATER for vapor cooled amplifier (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Tue, 6 Feb 2007 12:47:13 -0600
- Yep exactly DI water is mostly for use in laboratories, you would need to specify the dielectric capability with the water company. They should know everything. Just as quality distilled water is imp
- /archives//html/Amps/2007-02/msg00094.html (9,326 bytes)
- 110. Re: [Amps] Water Types (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Tue, 6 Feb 2007 16:36:30 -0600
- OK, I only worked with DI water as a supplier and applications engineer for valves on various cooling and purifying projects. Like any mad scientist, I asked questions and my post relied on informati
- /archives//html/Amps/2007-02/msg00102.html (9,846 bytes)
- 111. [Amps] Step Starting the 3CV1500A7 (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Wed, 7 Feb 2007 07:53:15 -0600
- I agree Paul, I would feel more comfortable doing things in order too. Its prolly all those years as an airline pilot, grab the check list and.... Shack lights, antenna switch, rotor control, audio r
- /archives//html/Amps/2007-02/msg00116.html (10,237 bytes)
- 112. [Amps] FW: 3CV1500A7 + Mods for 8877 Upgrade (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Wed, 7 Feb 2007 07:58:44 -0600
- Personally the 8877 scares the crap out of me. SO using the keep your friends close - keep your enemy's closer mentality, I try and buy as many as I can afford. BOB DD My experience with 8877's is th
- /archives//html/Amps/2007-02/msg00117.html (7,673 bytes)
- 113. Re: [Amps] Drake L4B (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Wed, 7 Feb 2007 15:11:34 -0600
- Applaud BOB DD Speaking of L4B's you guys got me going on investigating a little problem with mine. I don't know why this started happening because it was ok until now, but I noticed the 1000MP start
- /archives//html/Amps/2007-02/msg00124.html (9,431 bytes)
- 114. Re: [Amps] General question on filament life (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Thu, 8 Feb 2007 13:19:33 -0600
- Probably NO DIFFERENCE. There are some tubes that can only be cycled once a day, the 3CX800 and 4CX800 arent them. With any tube, I'd save the big ON switch until you knew you were going to need it.
- /archives//html/Amps/2007-02/msg00135.html (9,122 bytes)
- 115. Re: [Amps] General question on filament life (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Thu, 8 Feb 2007 14:23:35 -0600
- Anyone have a feel for what life one might get out of a set of **Chops busting time. OK, Your conditions, I'll restate it again Now I suppose if somebody would like to send me a stack of new lets say
- /archives//html/Amps/2007-02/msg00138.html (11,646 bytes)
- 116. [Amps] Transformers Chokes for sale (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Thu, 8 Feb 2007 15:47:09 -0600
- I have 6 single phase 60 cycle power transformers and choke combos for sale. The devices are manufactured by Magnetran and were removed from RF Power Products power supplies. These particular units p
- /archives//html/Amps/2007-02/msg00139.html (7,737 bytes)
- 117. Re: [Amps] General question on filament life (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Thu, 8 Feb 2007 18:39:17 -0600
- Gary and I have been discussing this most of the afternoon Much of what weve been talking about is along the lines of what Lou stated here. Basically within reason, I will turn my amp off if I will n
- /archives//html/Amps/2007-02/msg00148.html (11,869 bytes)
- 118. Re: [Amps] 3-500z - intermittent filament (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Fri, 9 Feb 2007 08:28:55 -0600
- Guys, I have done this countless times for people without wrecking the tube. Heat the pins with a big soldering iron and gently remove from the tube, clean bare pin and tin. Heat again and clean the
- /archives//html/Amps/2007-02/msg00159.html (15,132 bytes)
- 119. [Amps] Through the pàst darkly (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Mon, 12 Feb 2007 14:58:41 +0000
- 807 amp then a pair of 813's follows by four. A couple 4-400's then converted to 3-500's a 3-1000 then a pair. A pair of 8877's then 3CX1200's. 3X3. 3X10. Then YC-156 back to 8877's. Never did 4X1's
- /archives//html/Amps/2007-02/msg00214.html (7,284 bytes)
- 120. Re: [Amps] Seimens SVP tspa (score: 1)
- Author: "Robert B. Bonner" <rbonner@qro.com>
- Date: Thu, 15 Feb 2007 14:52:09 -0600
- Good going John, I looked all over tarnation and couldn't find squat on those things. I found a place with a bundle in stock however. BOB DD Jim My old Seimens datasheet shows that to be 145 VDC +/-
- /archives//html/Amps/2007-02/msg00252.html (8,798 bytes)
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