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81. Re: [Amps] SSR in amp PS not working as expected (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Wed, 9 Jan 2019 18:16:22 +0000; Hi All, Having been caught on more than one occasion with fakes, particularly fake SD memory cards, I now only buy semiconductor components from reputable sources - more costly, yes, but you are guar; /archives//html/Amps/2019-01/msg00032.html (11,258 bytes)
82. Re: [Amps] SSR in amp PS not working as expected (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Thu, 10 Jan 2019 17:31:19 +0000; Hi Ulf, No need to go to the States - try RS Components - their Swedish Website https://se.rs-online.com/web/ or Farnell - their Swedish Website https://se.farnell.com/ Both are reputable suppliers D; /archives//html/Amps/2019-01/msg00049.html (16,172 bytes)
83. [Amps] Custom Wound HT Transformer Suppliers in the UK (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Mon, 4 Feb 2019 00:49:40 +0000; Hi All Sometime ago someone on this reflector compiled a list of manufacturers who were willing to produce custom wound HT transformers for amateurs in the UK. I also recall that it included comments; /archives//html/Amps/2019-02/msg00015.html (6,967 bytes)
84. Re: [Amps] Question about grid current in 4CX or 3CX (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Sat, 16 Mar 2019 14:59:51 +0000; As you mention screen voltage, I assume you are talking of tetrode amplifiers. In a conventional grounded cathode/filament 4CX tetrode linear amplifier biased for class AB1 operation, the control gri; /archives//html/Amps/2019-03/msg00023.html (8,992 bytes)
85. Re: [Amps] Harris RF103 (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Fri, 15 May 2020 05:17:14 +0000; Hi Robert, I have an RF104. AFAIK the RF deck is the same as the RF103. It is the channel programme board behind the front door that is different. Please email me off list and I'll try to answer any; /archives//html/Amps/2020-05/msg00008.html (7,740 bytes)
86. Re: [Amps] 0-5 KV meter needed (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Thu, 6 Jan 2022 12:16:30 +0000; Hi Byron, My approach to producing dedicated meter scales is as follows. You will need flatbed scanner and a laser printer. 1 - Remove the meter scale, place on flatbed scanner and obtain jpg or bmp; /archives//html/Amps/2022-01/msg00037.html (8,601 bytes)
87. Re: [Amps] 8877 Grid Current (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Thu, 27 Jan 2022 16:23:38 +0000; Hi Byron, I have a homebrewed 2m W6PO amp built to the dimensions given in the original W6PO article. I run it with an HT of about 3700V under load. The grid current and efficiency is very dependent; /archives//html/Amps/2022-01/msg00105.html (10,855 bytes)
88. Re: [Amps] Western Electric (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Wed, 23 Mar 2022 07:08:44 +0000; I guess you haven't heard of Russ Andrews. https://www.russandrews.com/select-ks6068-speaker-cable-with-wbt0610ag-bananas-33739993131/ A mere Ł17,800 ($23,000) for a single 1.5 metre speaker cable. 1; /archives//html/Amps/2022-03/msg00053.html (10,792 bytes)
89. Re: [Amps] 2m GS35B Amplifier (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Sat, 1 Oct 2022 08:54:03 +0000; Hi Alek, I have a 70cm GS35b amp which exhibits most of the characteristics which you describe. My amp is based upon the design of PA3CSG https://pa3csg.nl/?page_id=17 . Also see VK3NX's comments htt; /archives//html/Amps/2022-10/msg00000.html (10,307 bytes)
90. Re: [Amps] 2m GS35B Amplifier (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Sat, 1 Oct 2022 15:01:49 +0000; Hi Paul, You could be lucky with your tube. Googling "GS35b tuning drift" will yield many examples. David G4FTC For whatever it may be worth, my 2m GS35b amp doesn't show any tuning drift at all runn; /archives//html/Amps/2022-10/msg00004.html (13,967 bytes)
91. Re: [Amps] Pem Nuts ? (score: 1): Author: David G4FTC <g4ftc@hotmail.com>; Date: Tue, 25 Oct 2022 14:02:36 +0000; Hi Jim, I use them extensively - in particular these https://uk.rs-online.com/web/p/clinch-nuts/0827647 Infinitely better than self tapping screws. Would be lost without them. 73 David G4FTC ________; /archives//html/Amps/2022-10/msg00057.html (8,372 bytes)

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