Mail Archive Search: <+from:g0jhc@blueyonder.co.uk>

Results:

References: [ +from:g0jhc@blueyonder.co.uk: 21 ]

Total 21 documents matching your query.

1. [Amps] slow down circuits for 240v blower (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Tue, 18 Nov 2003 06:47:06 -0000; I'm wanting to fit a front panel control on my latest amp project which will allow me to reduce the speed (and noise) of my EBM blower, (G2E-140) especially during long periods in receive. This doesn; /archives//html/Amps/2003-11/msg00243.html (7,272 bytes)
2. [Amps] warm up times of tubes? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Sun, 23 Nov 2003 10:05:55 -0000; Are warm up times of various tubes set in anyway with regards to what your going to "hit" them with after X minutes? Or is it not related. For example if a tube quotes 6 minutes to warm up (YC156) is; /archives//html/Amps/2003-11/msg00326.html (7,208 bytes)
3. [Amps] 160/80m amp tube recommendations (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Wed, 31 Dec 2003 19:35:13 -0000; I'm looking to build a 160/80m rf deck. I have 4-5kv available at 1-2A What tubes are "easier" than others down there. Does the YC156 lend its sell to two band operation at LF? Any pointers to what t; /archives//html/Amps/2003-12/msg00491.html (6,480 bytes)
4. RE: [Amps] 160/80m amp tube recommendations (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Wed, 31 Dec 2003 20:06:01 -0000; Thanks for your input Steve, I was expecting a question regarding power levels. You assume I'm planning on using it in this country, and building it for myself. Neither is the case. I've never been o; /archives//html/Amps/2003-12/msg00494.html (8,471 bytes)
5. [Amps] YC156 fitting screws (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Tue, 27 Jan 2004 07:33:51 -0000; I am trying to get hold of some screws for the YC156 tube, the 4 cathode and the 1 filament screw. Anything that isn't metric is hard to find these days over here. I have tried all the local Hams "no; /archives//html/Amps/2004-01/msg00304.html (6,764 bytes)
6. [Amps] YC156 fitting screws - got them tks (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Tue, 27 Jan 2004 12:46:59 -0000; One kind list member has already offered to ship me some. End of subject thanks. For future ref they are 10/24. I noted a similar question asked by a fellow European about 3 years ago, but no answer; /archives//html/Amps/2004-01/msg00307.html (7,133 bytes)
7. [Amps] Screws! (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Tue, 27 Jan 2004 16:55:39 -0000; Thank you to everyone for their kind offers of assistance. I should have some here soon. Appreciate everyone's interest in quite a mundane topic! Neil G0JHC __________________________________________; /archives//html/Amps/2004-01/msg00309.html (6,832 bytes)
8. [Amps] PTFE fasteners or adhesive backed PTFE (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Tue, 24 Feb 2004 19:35:09 -0000; Hi, I'm in the process of making a "flapper" cap. I have been warned away from using nylon screws to hold the PTFE in place and wonder what the sources are for some PTFE fasteners or something else s; /archives//html/Amps/2004-02/msg00226.html (6,853 bytes)
9. [Amps] HV clearance? and feed thru Capacitors (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Mon, 5 Apr 2004 16:15:20 +0100; There is a common 680pf "6kv" HV feed thru Capacitor on the market, that many seem to use, manufactured by Sprague, seen here http://www.rfparts.com/caps2.html#high I was just about to put one of the; /archives//html/Amps/2004-04/msg00043.html (7,300 bytes)
10. [Amps] load capacitor ratings? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Mon, 30 Aug 2004 08:08:04 +0100; How do I work out the voltage requirements for my load capacitor in a Pi-L? This will be a fixed freq amp designed and set-up without the need for large VSWR tolerances. I've searched the amp archive; /archives//html/Amps/2004-08/msg00447.html (6,408 bytes)
11. [Amps] input matching question on the YC156? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Thu, 16 Sep 2004 16:16:58 +0100; I'm currently playing around with a YC156 and have and have discovered an interesting phenomena which I'm having difficultly explaining. On previous amps I have never really bothered tuning the i/p m; /archives//html/Amps/2004-09/msg00277.html (7,639 bytes)
12. RE: [Amps] input matching question on the YC156? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Fri, 17 Sep 2004 06:49:50 +0100; Thanks to all last 24hr who have commented on the YC156 and my i/p findings. All noted. Leigh, KR6X, thanks, ..I think you may have misunderstood what I was doing. Your rules are of course excellent; /archives//html/Amps/2004-09/msg00285.html (10,935 bytes)
13. RE: [Amps] input matching question on the YC156? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Fri, 17 Sep 2004 16:07:06 +0100; To observe how much warmup time a heater-type cathode requires, connect a DMM between the cathode and the grid, apply heater power (only) and measure the potential as the cathode warms up. When the V; /archives//html/Amps/2004-09/msg00288.html (8,895 bytes)
14. [Amps] why does input SWR change when HV applied? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Sun, 17 Oct 2004 16:33:41 +0100; I have a question..maybe dump, but I don't know the answer. Just finished a YC156 amp .all working well. I was surprised to have to re-tune the input circuit to such an extend that I had to open up a; /archives//html/Amps/2004-10/msg00239.html (7,432 bytes)
15. [Amps] Amp failure advice please. (score: 1): Author: <g0jhc@blueyonder.co.uk>; Date: Mon, 15 Nov 2004 11:31:26 -0000; have an amp problem anyone any advice what to do next please? Completed it last week, tuned up and worked great to begin with, but after a little soak testing something has gone wrong, I have lost my; /archives//html/Amps/2004-11/msg00211.html (8,917 bytes)
16. [Amps] amp problem - thanks for help, and the problem. (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Sat, 20 Nov 2004 16:19:28 -0000; Thanks to all that replied and offered assistance last week ref by amp query. It turned out to be the vacuum capacitor which would appear to break down at over 1000v. New one ordered. Thank you guys; /archives//html/Amps/2004-11/msg00327.html (7,218 bytes)
17. [Amps] HT 57 blocking cap ratings? (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Sat, 4 Dec 2004 08:08:50 -0000; I note the HT57 (N750 series 200pf 15KV) has a max current rating on their web site of 12amps at 10MHz and 15 amps at 30MHz, data is based on not exceeding the max rated 15kv. Does than mean their cu; /archives//html/Amps/2004-12/msg00064.html (6,558 bytes)
18. [Amps] RCA 5762 (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Thu, 5 May 2005 18:38:20 +0100; Hi Guys, I'm looking for a data sheet for the RCA 5762.. all I have found in google search is links to some 5kw AM transmitters. I have some new. Any info appreciated. Neil G0JHC ____________________; /archives//html/Amps/2005-05/msg00087.html (6,227 bytes)
19. [Amps] tks for info (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Thu, 5 May 2005 19:53:45 +0100; Bill WA4LAV, Pat WA4TUK and Chris ? Many thanks for your time and links, much appreciated. 73 Neil G0JHC _______________________________________________ Amps mailing list Amps@contesting.com http://l; /archives//html/Amps/2005-05/msg00089.html (6,170 bytes)
20. [Amps] pi to pi-L o/p matching question (score: 1): Author: "Neil Carr G0JHC" <g0jhc@blueyonder.co.uk>; Date: Fri, 20 May 2005 19:14:53 +0100; When going from a Pi to a Pi-L, is the required value of C2 increased or decreased? Thanks de Neil G0JHC _______________________________________________ Amps mailing list Amps@contesting.com http://l; /archives//html/Amps/2005-05/msg00211.html (6,918 bytes)

Current List: 1 - 20
Page: [1] [2]