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41. Re: [Amps] 10dB and propagation (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Tue, 08 Feb 2005 14:39:20 -0500
Colin Lamb wrote: "Say, did somebody here mention amplifiers recently? Anybody? Please!" Well, we have been talking about amplifiers. But, instead of using vacuum tubes, we are discussing using hot a
/archives//html/Amps/2005-02/msg00315.html (8,939 bytes)

42. Re: [Amps] Two quick loading questions (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Wed, 09 Feb 2005 17:14:40 -0500
Always dip the plate last. 2- Depends on why you are reducing drive. If doing so to operate cw at lower power then do a complete retune with that amount of drive. Tune for maximum output as usual and
/archives//html/Amps/2005-02/msg00357.html (9,117 bytes)

43. Re: [Amps] Re: 10dB and propagation (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Wed, 09 Feb 2005 21:57:05 -0500
"He" doesn't seem to be defensive at all. Seems he only stated what he and others saw. It has come to others imaginations here as to what that really was. I always get a kick out of the guys that exp
/archives//html/Amps/2005-02/msg00374.html (9,456 bytes)

44. Re: [Amps] Two quick loading questions (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 10 Feb 2005 14:23:20 -0500
It is not always easy to see flattoping on a scope. Especially when using any kind of speech processing. The processing itself tends to square off the peaks. So when you actually observe flattoping o
/archives//html/Amps/2005-02/msg00408.html (11,706 bytes)

45. Re: [Amps] Re: 10dB and propagation (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Fri, 11 Feb 2005 12:27:18 -0500
Jeremy Alexander wrote: what gives us the notion that just because you see a momentary 3 dB increase (if you actually could) it was actually anything at all? I don't even trust a RF Volt meter connec
/archives//html/Amps/2005-02/msg00429.html (9,553 bytes)

46. Re: [Amps] Ebay 4-400A chuckle (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Fri, 11 Feb 2005 18:39:15 -0500
Musta been a bad parasitic. 73 Gary K4FMX wc6w@juno.com wrote: Read up to the part about the tilted plate... which may "self correct" under load. G-load, perhaps... :-) http://cgi.ebay.com/ws/eBayISA
/archives//html/Amps/2005-02/msg00439.html (9,207 bytes)

47. Re: [Amps] Cooling (GS35B) (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Tue, 15 Feb 2005 21:23:08 -0500
That would seem that you don't have a big enough blower to produce the needed back pressure required. Measuring the back pressure in the chassis with a simple manometer will tell the story. A clear h
/archives//html/Amps/2005-02/msg00540.html (9,787 bytes)

48. Re: [Amps] 3-1000Z Filament Voltage Question (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sat, 19 Feb 2005 14:14:35 -0500
Your meter calibration is probably off that far unless you have a very good one. 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.conte
/archives//html/Amps/2005-02/msg00600.html (8,829 bytes)

49. [Amps] 250 volt transformer wanted (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 21 Feb 2005 16:55:49 -0500
I am looking for a transformer around 250 volts at 500 ma to 1 amp. A 120 / 240 volt isolation transformer would probably be ok. I have a 900 volt transformer with a doubler in the power supply for a
/archives//html/Amps/2005-02/msg00656.html (6,818 bytes)

50. Re: [Amps] (amps) RE: SB 200 Puzzler (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Wed, 23 Feb 2005 20:51:44 -0500
Did you try it on a good dummy load? 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-02/msg00709.html (8,114 bytes)

51. Re: [Amps] Shipping Damage (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 24 Feb 2005 15:19:20 -0500
I am in Florida and used to ship things from my company by ups. I remember when they started this blanket "double box" BS. I can't quite remember when it started but long ago they gave no hassle abou
/archives//html/Amps/2005-02/msg00772.html (11,379 bytes)

52. Re: [Amps] SB-220 Bandswitches (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Fri, 25 Feb 2005 11:46:17 -0500
I got an email from him a week or so ago and he said he should reopen in a couple of weeks. 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://
/archives//html/Amps/2005-02/msg00808.html (9,201 bytes)

53. Re: [Amps] [BULK] - Re: Shipping Damage (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Fri, 25 Feb 2005 13:12:14 -0500
They are not right. If they accept your payment for "insurance" that is an additional fee over the normal shipping liability they have. With insurance they are guaranteeing it will arrive safely. Poo
/archives//html/Amps/2005-02/msg00820.html (8,553 bytes)

54. Re: [Amps] close to off topic - how to read antenna R + jX ?? (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sat, 26 Feb 2005 18:04:11 -0500
The antenna "could" be 50 ohms resistive. As a matter of fact when the meter is showing 1:1 and zero reactance at the point of measurement that means it is purely resistive at that point. You can not
/archives//html/Amps/2005-02/msg00870.html (10,989 bytes)

55. Re: [Amps] close to off topic - how to read antenna R + jX ?? (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 28 Feb 2005 11:05:54 -0500
Steve, There has been a guy advertising on ebay for probe repair kits off and on. Search on hp 8405a 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2005-02/msg00930.html (10,845 bytes)

56. Re: [Amps] Alpha 77Dx -Adding Grounded Grid Filament Choke (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sat, 05 Mar 2005 11:58:10 -0500
Have you figured how many joules of energy the amp will supply with a plate circuit short compared to how much energy the gas tube will handle? 73 Gary K4FMX _________________________________________
/archives//html/Amps/2005-03/msg00106.html (11,210 bytes)

57. Re: [Amps] E-Book (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sat, 05 Mar 2005 18:07:15 -0500
Hi Dan, I tried sending you the HP app note AN77-3 for the hp 8405. The email kept choking. How do I send it to you? 73 Gary K4FMX _______________________________________________ Amps mailing list Am
/archives//html/Amps/2005-03/msg00123.html (8,676 bytes)

58. Re: [Amps] water cooled... (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sat, 05 Mar 2005 22:10:45 -0500
Even in the tropical climate of Florida, diesel engine manufacturers recommend antifreeze in most engines. This is to raise the boiling point and prevent cavitation at hot spots on the cylinder walls
/archives//html/Amps/2005-03/msg00137.html (8,946 bytes)

59. [Amps] FL200B amp (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sat, 05 Mar 2005 22:18:09 -0500
I am in the process of putting back together a basket case fl2100B amp that I have had lying around for a few years. Someone made a bad attempt at converting it to 6 meters. I have all the parts and
/archives//html/Amps/2005-03/msg00138.html (6,791 bytes)

60. Re: [Amps] bandswitch repaired (photos)...now plate choke (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Wed, 09 Mar 2005 11:08:32 -0500
Fantastic pictures Kevin! Thanks much for taking the time to send them. They are very handy in seeing where everything goes. My whole tank circuit had been disassembled and removed. Taps were moved a
/archives//html/Amps/2005-03/msg00236.html (12,078 bytes)

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