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41. [Amps] Fleamarkets and more (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Tue, 2 Feb 2010 09:57:04 -0800 (PST); The discussion here is alarming but absolutely true. I wonder if most of us are at fault by not allowing those "newbies" or future "newbies" to come to our stations/shacks/shops and see, touch (no HV; /archives//html/Amps/2010-02/msg00089.html (7,564 bytes)
42. Re: [Amps] Tranformer construction webpages (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Tue, 23 Feb 2010 14:24:38 -0800 (PST); Guys and Gals.... To me, the hard part was the primary and getting that right. Still need to look at how that is done. You have to have enough wire so it is not a direct short....but not to much....s; /archives//html/Amps/2010-02/msg00705.html (7,696 bytes)
43. [Amps] Outrageous Prices on Ebay (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Fri, 5 Mar 2010 19:24:45 -0800 (PST); Maybe I am not realistic here....but I have been following some bids on EPay. An HA-14 amp and power supply went for $516. I find that to be outrageous and high. I know they are rare, but you could b; /archives//html/Amps/2010-03/msg00104.html (7,490 bytes)
44. [Amps] SB-1000 on 10 Meters (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Wed, 10 Mar 2010 06:46:10 -0800 (PST); Is it possible to put the SB-1000 on 10 meters or is this a major rework of the Pi-Net? Lee - K0WA Ham Radio Operators: Kansas QSO Party is August 28-29, 2010. See www.ksqsoparty.org for details In o; /archives//html/Amps/2010-03/msg00159.html (6,654 bytes)
45. [Amps] GI7B Question - Input Matching (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Sun, 14 Mar 2010 13:30:13 -0700 (PDT); I have been reading about the GI-7B Russian made tube. It seems that the input impedance of two tubes is around 100 ohms. Could you not just use a 2:1 transformer to make a match from 50 ohms to 100; /archives//html/Amps/2010-03/msg00257.html (6,891 bytes)
46. [Amps] Question about Transformers (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Mon, 22 Mar 2010 08:24:06 -0700 (PDT); I have most of the parts to build an homebrew amplifier except the HV transformer. I am going to run about 2500 volts or less but need about 500 ma. Where could one lead me to find something that wou; /archives//html/Amps/2010-03/msg00463.html (6,927 bytes)
47. [Amps] Why people don't build amps. $$$ and Shop Class (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Fri, 26 Mar 2010 06:22:00 -0700 (PDT); I find it hard to find parts. Well, I will be blunt here. I don't like to "pay" the price for today's parts. Now, with that said, let me explain a little. I got my first license in 1965 at the age of; /archives//html/Amps/2010-03/msg00634.html (10,837 bytes)
48. [Amps] Russian Tubes (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Tue, 27 Apr 2010 07:47:46 -0700 (PDT); I know some (if not all) of the Russian tubes being sold today are NOS. What do the experts on the list recommend to "get them ready" for use? Is there a procedure that one should do? Is there anyone; /archives//html/Amps/2010-04/msg00660.html (6,753 bytes)
49. [Amps] Calculation of Tube Impedance (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Thu, 29 Apr 2010 09:06:10 -0700 (PDT); I am at a loss to figure out how to calculate the output impedance of a tube or a pair of tunes. I cannot find an old Handbook that had the information ((I think it is still packed from a previous mo; /archives//html/Amps/2010-04/msg00691.html (7,052 bytes)
50. [Amps] (no subject) (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Thu, 29 Apr 2010 11:53:01 -0700 (PDT); Can anyone tell me the following.... Dentron Clipperton - L SSB Plate Voltage = CW Pate Voltage = Maximum Current = The instruction manual on Edbris doesn't clearly state any of that information. Lee; /archives//html/Amps/2010-04/msg00693.html (7,132 bytes)
51. [Amps] Clipperton - L Parameters (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Thu, 29 Apr 2010 11:54:30 -0700 (PDT); Can anyone tell me the following.... Dentron Clipperton - L SSB Plate Voltage = CW Pate Voltage = Maximum Current = The instruction manual on Edbris doesn't clearly state any of that information. Lee; /archives//html/Amps/2010-04/msg00694.html (6,797 bytes)
52. Re: [Amps] Calculation of Tube Impedance (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Sat, 1 May 2010 10:50:55 -0700 (PDT); I think it is Plate V divided by (Plate I times the "K" factor) or Resistance Anode = V/(I x 1.8) some people use 1.87 Lee K0WA While it is the plate voltage swing that generates the rf power, it is; /archives//html/Amps/2010-05/msg00003.html (9,445 bytes)
53. [Amps] Vacuum Variables Tips and Tricks? (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Sun, 2 May 2010 06:25:48 -0700 (PDT); I have been looking at Vacuum Variables Capacitors made in Russia. Has anyone had any experience with these type of caps? I sure someone has. Do they mount in a "saddle and clamp" mechanism? I have b; /archives//html/Amps/2010-05/msg00010.html (7,333 bytes)
54. Re: [Amps] HV Connectors - Millen? (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Mon, 24 May 2010 07:18:24 -0700 (PDT); I have been reading this thread.... What I do not understand is why not use Millen HV Connectors. They were used for years. What is wrong with those? Lee - K0WA Ham Radio Operators: Kansas QSO Party; /archives//html/Amps/2010-05/msg00377.html (8,344 bytes)
55. [Amps] What do you think of these HV Connectors (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Thu, 27 May 2010 08:14:17 -0700 (PDT); Been doing a search for SHV connectors on the internet. Found some that are quite expensive. Here are some that I found that are affordable. http://www.surplussales.com/Wire-Cable/HVWire-2.html What; /archives//html/Amps/2010-05/msg00415.html (7,504 bytes)
56. Re: [Amps] backwards plate transformer (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Tue, 1 Jun 2010 09:07:06 -0700 (PDT); I have done this too. I took the transformer out of the can (I am not sure what the status of the oil was - but it was some 35 years ago) and it worked fine with 240 volts on the "primary" with 2400; /archives//html/Amps/2010-06/msg00020.html (8,072 bytes)
57. [Amps] TAP program (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Wed, 16 Jun 2010 18:42:00 -0700 (PDT); Gentlemen.... Does anyone have a copy of the TAP program by KD9JQ? I cannot seem to find it on the internet. If so, could you send it to me and any associated files? Lee - K0WA Ham Radio Operators: K; /archives//html/Amps/2010-06/msg00174.html (6,731 bytes)
58. Re: [Amps] TAP program (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Thu, 17 Jun 2010 04:42:59 -0700 (PDT); Pete... Been there...done that. Google is great, but not everything works. I could not get the program to download. Server timeout every time. Lee - K0WA Ham Radio Operators: Kansas QSO Party is Augu; /archives//html/Amps/2010-06/msg00175.html (9,898 bytes)
59. [Amps] Check out This Ebay Amplifier system (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Thu, 8 Jul 2010 10:54:12 -0700 (PDT); I usually don't do this, but you gotta look at this on Ebay..... Item number: 180530035557 or http://cgi.ebay.com/GMC-CUSTOM-VAN-HEATHKIT-LINEAR-AMP-/180530035557?cmd=ViewItem&pt=LH_DefaultDomain_0&h; /archives//html/Amps/2010-07/msg00081.html (7,121 bytes)
60. [Amps] Automotive Relays (score: 1): Author: Lee Buller <k0wa@swbell.net>; Date: Tue, 3 Aug 2010 11:38:45 -0700 (PDT); OK... Just asking. No one laugh.... Automotive relays are fairly cheap and you can get them just about anywhere. 12 volts switching voltage....and they care a lot of DC amps. So, could one use those; /archives//html/Amps/2010-08/msg00022.html (6,768 bytes)

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