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41. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Fri, 25 Jun 1999 13:05:54 +0100; about 11db Exactly my point - full output. What happens if you tune for full output, reduce the drive to get say 100volts peak across the load, DO NOT RETUNE, and then switch the HV, again without r; /archives//html/Amps/1999-06/msg00688.html (9,326 bytes)
42. [AMPS] Peak reading vs True peak (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 25 Jun 1999 09:01:56 -0400; As I said, there are limits. You can reduce HV so far that a tube becomes non-linear in its response to a HV change. But if the HV changes and the tube is not moved into a non-linear portion of the; /archives//html/Amps/1999-06/msg00691.html (11,186 bytes)
43. [AMPS] Peak reading vs True peak (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 25 Jun 1999 09:32:52 -0400; I'd need to think about that for a bit. It absolutely applies to grounded grid PA's and class C PA's, but I'm not at all sure it applies to other conditions. I'll look into that, it might be useful; /archives//html/Amps/1999-06/msg00692.html (9,515 bytes)
44. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Fri, 25 Jun 1999 14:44:51 +0100; Class C is a different case, because the thing is always in gain compression 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative reque; /archives//html/Amps/1999-06/msg00693.html (8,732 bytes)
45. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 25 Jun 1999 07:54:52 -0700; ? However, on the low v tap, P.out decreases by c. 1.5db. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@co; /archives//html/Amps/1999-06/msg00696.html (8,978 bytes)
46. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 25 Jun 1999 08:50:44 -0700; ? Meter response is never an issue here because I do not measure watts with a wattmeter. I use a freshly calibrated oscilloscope and HV multiplier probe to measure peak-v across the load, which I th; /archives//html/Amps/1999-06/msg00698.html (8,716 bytes)
47. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Fri, 25 Jun 1999 16:56:58 +0100; peak-v across the load, which I then convert Which method actually measures the PEP according to its international definition, and is modulation independent. What more could you ask for? 73 Peter G3R; /archives//html/Amps/1999-06/msg00700.html (8,428 bytes)
48. [AMPS] Peak reading vs True peak (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 25 Jun 1999 13:28:36 -0400; Meter response is an issue, unless you use your scope to measure the HV. You have to worry about the HV meters response to changing HV as the supply loading changes. 73, Tom W8JI w8ji@contesting.com; /archives//html/Amps/1999-06/msg00706.html (8,665 bytes)
49. [AMPS] Peak reading vs True peak (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 25 Jun 1999 13:28:36 -0400; I use a good peak storage amplifier with a LM-358 and a conventional directional coupler, which reads peaks perfectly well with all types of modulating including pulse in the microsecond range. I do; /archives//html/Amps/1999-06/msg00709.html (8,759 bytes)
50. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 25 Jun 1999 14:42:44 -0700; ? Can you read 2kV peaks across 50-ohms at 4MHz? ? My load still measures 49.8 ohms. A use a voltage-standard to calibrate the scope. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measur; /archives//html/Amps/1999-06/msg00715.html (8,859 bytes)

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