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21. [AMPS] Chassis for HB Amps (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Tue, 1 Jan 2002 02:40:01 -0000; Find a roofing or sheetmetal shop. They have guillotines and metal bending breaks. If necessary get them to buy in a sheet of aluminium of the weight you need. They will cut panels for little cost. G; /archives//html/Amps/2001-12/msg00520.html (10,334 bytes)
22. [AMPS] another myth on EMF (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Tue, 6 Nov 2001 06:40:05 +1300; My 02c. worth: I am reasonably persuaded that the biological effects on adult humans from being subjected to strong rf fields in the vlf-hf region are minimal. As has been pointed out whole poulation; /archives//html/Amps/2001-11/msg00052.html (13,200 bytes)
23. [AMPS] Screen voltage effects??? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 15 Nov 2001 19:09:02 +1300; At the risk of being blown away by those more knowledgable: Rules of thumb:Higher screen volts give greater amplification. Juggle G1 volts to give appropriate standing current for the mode you wish t; /archives//html/Amps/2001-11/msg00252.html (9,682 bytes)
24. [AMPS] Gi7B Tube Amps (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Fri, 16 Nov 2001 11:30:32 +1300; Not that I am likely to try it, but what is the trick with water cooling? Is the water non-conductive, or do you isolate it some way. What about vapour cooling? how that work? Just curious. 73 end Ba; /archives//html/Amps/2001-11/msg00273.html (10,491 bytes)
25. [AMPS] Screen volts stuff (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Fri, 16 Nov 2001 14:04:46 +1300; Sorry about ambiguity in my post on setting up screen volts. When I said set grid volts for desired standing current I meant desired standing plate/anode current. Thereby setting the static operating; /archives//html/Amps/2001-11/msg00274.html (6,657 bytes)
26. [AMPS] Noises in electrolytic capacitors (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 4 Oct 2001 01:03:42 +1200; Very Interesting! My Viewstar had the same problem. Ended out building new capacitor mounts as exact replacements not available here. Used new German hi spec resistors. No problems since. 73 end Barr; /archives//html/Amps/2001-10/msg00030.html (11,067 bytes)
27. [AMPS] Beer? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Tue, 9 Oct 2001 09:46:07 +1300; Beer comes in two varieties: Mass produced chemical piss which induces intense brand loyalty in those stupid enough to consume it. (obviously causes insanity) e.g Coors, Bud (or in ZL: Lion or DB) Th; /archives//html/Amps/2001-10/msg00188.html (9,616 bytes)
28. [AMPS] Tuned Input, what me worry (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Tue, 9 Oct 2001 11:53:53 +1300; This is a multi-part message in MIME format. --=_NextPart_000_087A_01C150B9.1155EBE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I seem to remember the; /archives//html/Amps/2001-10/msg00193.html (14,073 bytes)
29. [AMPS] Beer? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Tue, 9 Oct 2001 16:56:15 +1300; Yep, San Miguel, fits in both Spanish World and E Asian categories. An excellent example of a quality large production beer. 73 end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm Bea; /archives//html/Amps/2001-10/msg00209.html (8,987 bytes)
30. [AMPS] Help building mono band amp (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 11 Oct 2001 10:15:33 +1300; Yep, similar 2x813 amp in older "Radio Handbook" by Bill Orr. A proven performer. 73 es gl. end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm Beach Waiheke Island 1240 NEW ZEALAND w; /archives//html/Amps/2001-10/msg00270.html (16,810 bytes)
31. [AMPS] Beginner's amp project (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 11 Oct 2001 10:22:32 +1300; More on 813 gg: There is a very good design and description in RSGB Radio Communication Handbook 5th Edition Vol 1. 1976 pp 6.122 et seq. Some libraries may have copies in the basement. 73 end Barry; /archives//html/Amps/2001-10/msg00272.html (6,710 bytes)
32. [AMPS] Henry 1KD5 Rectifier question (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Wed, 31 Oct 2001 23:22:49 +1300; Gad, Sir. Anyone who reads QST for 1928 or thereabouts knows that one uses Xmas tree lights to make an artificial filament centre tap! 73 end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Roa; /archives//html/Amps/2001-10/msg00501.html (10,129 bytes)
33. [AMPS] True Or Not True #2 (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Fri, 7 Sep 2001 08:24:51 +1200; By definition, from psychophysics, 1dB is the increase or decrease in signal strength that can be discerned by an average observer on 50% of occasions. A 2dB increase should be discernible by an aver; /archives//html/Amps/2001-09/msg00080.html (9,760 bytes)
34. [AMPS] Distortion, amp design, and 813s (newbie alert!!) (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 20 Sep 2001 12:03:32 +1200; Triode connected gg813s are being used with great success all over the world. There are plenty of them in ZL. I do not have personal knowledge of use of more than a pair of them. They have rather hig; /archives//html/Amps/2001-09/msg00352.html (11,067 bytes)
35. [AMPS] Series C at tube, Sorry, for C read L (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 20 Sep 2001 23:34:02 +1200; Sorry, brain slipped out of gear. Meant Series L. cheers end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm Beach Waiheke Island 1240 NEW ZEALAND www.waiheke.co.nz/signal.htm -- Orig; /archives//html/Amps/2001-09/msg00366.html (9,617 bytes)
36. [AMPS] Series C at tube, Sorry, for C read L (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Fri, 21 Sep 2001 07:02:27 +1200; Not if you wind the coil in the opposite direction, 73 end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm Beach Waiheke Island 1240 NEW ZEALAND www.waiheke.co.nz/signal.htm -- Origin; /archives//html/Amps/2001-09/msg00376.html (8,417 bytes)
37. [AMPS] Voltage Doubler / Filter Capacitance Question (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Fri, 21 Sep 2001 10:27:01 +1200; Hello Kurt and all: Worth looking at www.duncanamps.com Go to section: PSU Designer. Here you can model the performance of your power supply, or make decisions about the components you will need. The; /archives//html/Amps/2001-09/msg00380.html (9,840 bytes)
38. [AMPS] Additional Info Voltage Doubler/Filter Capacitance (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Fri, 21 Sep 2001 13:46:53 +1200; This is a multi-part message in MIME format. --=_NextPart_000_0016_01C142A3.DF5B7560 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Kurt, There is full inf; /archives//html/Amps/2001-09/msg00382.html (14,135 bytes)
39. [AMPS] Emtron amps (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Sat, 22 Sep 2001 07:23:29 +1200; Jukka OH2BH used one on his Pitcairn operation after Brand X failed. He spoke very highly of it. 73 end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm Beach Waiheke Island 1240 NEW Z; /archives//html/Amps/2001-09/msg00396.html (7,543 bytes)
40. [AMPS] TS-930 vs 830 etc. (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Wed, 8 Aug 2001 05:54:10 +1200; ts930 great but get later model. beware digi board and power supply. see www.kkn.net/~k5tr/ts930fix/html ADD CROWBARS TO BOTH POWER RAILS. 73 end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory; /archives//html/Amps/2001-08/msg00082.html (9,884 bytes)

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