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21. Re: [Amps] QSK (okay, not QSK...) (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 23 Feb 2006 19:22:02 -0500
Echos my sentiments. I just came back from Home Depot after having picked up a fire extinguisher. Awaiting the "we're through with it" comment! :-) - Jim WB6BLD _____________________________________
/archives//html/Amps/2006-02/msg00475.html (8,133 bytes)

22. Re: [Amps] Proof of idiocy (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 13 Mar 2006 20:27:53 -0500
I don't think this kind of thing was done on a production basis. A lot of clever things can be done by manipulating the machinery involved but on a production line I suspect they used an uncommon mac
/archives//html/Amps/2006-03/msg00348.html (8,362 bytes)

23. Re: [Amps] Washing equipment (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 15 Mar 2006 20:48:45 -0500
I clearly remember that when I lived in Santa Barbara CA in the 60s and 70s the local Tektronix rep told me how their scopes were cleaned. The method was precisely as described by N7KA. - Jim Tonne W
/archives//html/Amps/2006-03/msg00415.html (6,637 bytes)

24. Re: [Amps] Happy birthday to... (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 16 Mar 2006 11:17:24 -0500
And in the field thermodynamics, too. For example, transistors commonly have a "degrees per watt" rating for the resistance between the chip and the case. - Jim Tonne ________________________________
/archives//html/Amps/2006-03/msg00455.html (8,117 bytes)

25. Re: [Amps] Trichloroethene (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 17 Mar 2006 13:24:19 -0500
Once upon a time, long, long ago, I was cleaning up a 1 kW broadcast tramsitter that used motors to run the variable caps for tuning. Some of the motors were very dirty and straining to even move. I
/archives//html/Amps/2006-03/msg00505.html (9,476 bytes)

26. Re: [Amps] HV switching power supplys? (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 17 Mar 2006 14:33:09 -0500
And the reliability of an old-fashioned iron-cored transformer is very high indeed, especially when compared to any kind of semiconductor. - Jim Tonne _______________________________________________
/archives//html/Amps/2006-03/msg00519.html (8,189 bytes)

27. Re: [Amps] Gonset GSB-201 Mods (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 23 Mar 2006 12:04:14 -0500
If that 50k resistor is the bleeder on the power supply, * leave it alone * !!! - Jim WB6BLD _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contest
/archives//html/Amps/2006-03/msg00618.html (7,211 bytes)

28. Re: [Amps] Gonset GSB-201 Mods (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 23 Mar 2006 16:45:41 -0500
To discharge the filter caps after you turn off primary power. A few second time-constant is usual. As you surmised, this is an issue separate from the minimum-current aspect of a chok-input filter.
/archives//html/Amps/2006-03/msg00625.html (7,602 bytes)

29. Re: [Amps] slightly off topic - bandpass filter software ? (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 24 Mar 2006 10:45:55 -0500
Another: http://tonnesoftware.com/ - Jim WB6BLD _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-03/msg00635.html (7,377 bytes)

30. Re: [Amps] "I gotta tell this" (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Tue, 28 Mar 2006 16:32:05 -0500
Gents: To be politically correct we don't call them hillbillies anymore. They (we, actually) are to be referred to as Appalachian-Americans! - Jim WB6BLD _____________________________________________
/archives//html/Amps/2006-03/msg00712.html (7,366 bytes)

31. Re: [Amps] Need some 220K 2 watt carbon resistors (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 29 Mar 2006 09:32:55 -0500
Gents: Regarding the inductance which surely must exist in a real-world commercial resistor: With a resistor of 220K (which is what this thread is about) wouldn't the inductance be kind of so-what? I
/archives//html/Amps/2006-03/msg00732.html (10,204 bytes)

32. Re: [Amps] "I gotta tell this" (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 29 Mar 2006 15:06:36 -0500
Cliff: The FM broadcast rigs are mostly solid state up to 20 kW. The mediumwave broadcast rigs are mostly solid state up to 100 kW. Shortwave rigs, which are 50 kW and above and generally 100 kW to 5
/archives//html/Amps/2006-03/msg00747.html (11,591 bytes)

33. Re: [Amps] Replacement Cap Mounting Board Henry 2k-Classic Console (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 3 Apr 2006 14:10:10 -0400
Glastic GPO-3 may go by the name of "red stuff" although this might be kind of casual. An important caveat with it is that although it would be excellent for the project at hand, be advised it gets l
/archives//html/Amps/2006-04/msg00025.html (8,226 bytes)

34. Re: [Amps] Plate impedance (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 10 Apr 2006 10:10:49 -0400
Rich: Pardon my ignorance, but what is ZSAC? - JimT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-04/msg00136.html (7,477 bytes)

35. Re: [Amps] Cal Lab (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Sun, 23 Apr 2006 22:25:25 -0400
A more professional way to make meter faces is to use software intended to do that, an example of which is here: http://tonnesoftware.com/meter.html - Jim WB6BLD _____________________________________
/archives//html/Amps/2006-04/msg00347.html (8,361 bytes)

36. Re: [Amps] Series PC Power Supplies (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 1 Jun 2006 15:17:45 -0400
Will: If the supplies are in series wouldn't each be passing the same number of amps? What is there to "balance"? What do you mean by "placing rectifiers across..." each supply? - Jim WB6BLD ________
/archives//html/Amps/2006-06/msg00009.html (12,460 bytes)

37. Re: [Amps] Series PC Power Supplies (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 1 Jun 2006 16:49:56 -0400
Peter: Good explanation of why and how! Thanks. However there seems nothing to "balance"! - Jim WB6BLD _______________________________________________ Amps mailing list Amps@contesting.com http://lis
/archives//html/Amps/2006-06/msg00012.html (14,859 bytes)

38. Re: [Amps] exciter overshoot (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 9 Jun 2006 14:34:55 -0400
I agree with Peter's comment about using ALC. The original intent of ALC, if my memory serves me correctly, was to prevent overdrive of an amplifier. But it came to be used as a crude form of "speech
/archives//html/Amps/2006-06/msg00241.html (7,712 bytes)

39. Re: [Amps] Maximum RF output in practical application: 4-250A (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Sun, 2 Jul 2006 14:14:36 -0400
That RCA rig was a single-frequency affair and that circuit is a bitch to tune. I wouldn't touch it for ham use unless I wanted to park it on, say, 3885 kHz. Been there. - Jim WB6BLD ________________
/archives//html/Amps/2006-07/msg00062.html (8,882 bytes)

40. Re: [Amps] Maximum RF output in practical application: 4-250A (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 3 Jul 2006 12:21:36 -0400
*There* are the keys: it is NOT a linear amplifier and it is NOT easily QSYd. And while we are at it, the modulator itself does not enter into the picture. RCA correctly claimed 90% (or better) effi
/archives//html/Amps/2006-07/msg00109.html (9,464 bytes)

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