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1. [AMPS] L-Pi net...downside? (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sun, 1 Aug 1999 12:17:50 -0700
higher should know ? Murphy said that things are more complicated than they look. In my opinion, this is prime example of what he was talking about. Rich... R. L. Measures, 805-386-3734, AG6K, www.v
/archives//html/Amps/1999-08/msg00004.html (9,002 bytes)

2. [AMPS] explain this one (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sun, 1 Aug 1999 12:17:44 -0700
? Because Mario was measuring the potential on the Tune-C, not the potential at the anode. ? Quoting Mario: -- When you make stuff up to support your case, Tom, you only undermine it. . ? Anyone wit
/archives//html/Amps/1999-08/msg00005.html (12,571 bytes)

3. [AMPS] Input pi-net (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sun, 1 Aug 1999 22:17:46 -0700
? The best load is the real one. ? The cathode Z of a GG amplifier is unlike a resistor. - cheers, Werner Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www
/archives//html/Amps/1999-08/msg00015.html (8,730 bytes)

4. [AMPS] Clipperton L on 10 Meters (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Mon, 2 Aug 1999 10:05:21 -0700
? As I recall, the input bandswitch and output bandswitch wafers in the Clipperton are next to each other and there is no shield between them. - later, Steve Rich... R. L. Measures, 805-386-3734, AG
/archives//html/Amps/1999-08/msg00032.html (8,075 bytes)

5. [AMPS] breakdown voltage on vac. relays (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Mon, 2 Aug 1999 10:05:23 -0700
? excellent. The factory spec is 3500v min.. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com
/archives//html/Amps/1999-08/msg00033.html (7,225 bytes)

6. [AMPS] SB-220 input circuit (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Mon, 2 Aug 1999 10:09:24 -0700
? In the SB-220, the input pi-network has a Q of somewhat less than two. For a solid-state radio, a Q of c. two is needed to obtain a good match. . Rich... R. L. Measures, 805-386-3734, AG6K, www.vc
/archives//html/Amps/1999-08/msg00034.html (9,072 bytes)

7. [AMPS] Re: (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Mon, 2 Aug 1999 16:08:26 -0700
? Peak Envelope Power is the RMS value of peak voltage, squared, divided by R. . PEP is not a measurement of average power. It is a measurement of RMS power. ? There are two voltage peaks in one RF
/archives//html/Amps/1999-08/msg00045.html (8,392 bytes)

8. [AMPS] explain this one (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Mon, 2 Aug 1999 16:08:31 -0700
? none ? no ? What, me worry? ? As I recall, one customer miswired some and destroyed them. Otherwise, out of seven reels, there have been no other reported problems. ? I would have to go look. ? Ea
/archives//html/Amps/1999-08/msg00046.html (8,791 bytes)

9. [AMPS] SB-220 input circuit (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Mon, 2 Aug 1999 17:13:23 -0700
-- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.cont
/archives//html/Amps/1999-08/msg00050.html (8,348 bytes)

10. [AMPS] SB-220 input circuit (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Tue, 3 Aug 1999 04:12:48 -0700
? A Q of only 0.75 on 80m is also part of the problem - but only for solid-state output radios. ? amen. Extending the multimeter wires and adding a ground wire makes this a whole lot easier. Rich...
/archives//html/Amps/1999-08/msg00063.html (8,693 bytes)

11. R: [AMPS] L-Pi net...downside? (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Tue, 3 Aug 1999 05:34:27 -0700
? Pi-networks and L networks are not resonant on the working frequency. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submis
/archives//html/Amps/1999-08/msg00068.html (10,853 bytes)

12. [AMPS] SB-220 input circuit (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Tue, 3 Aug 1999 07:36:11 -0700
? You need a ground wire if you operate the SB-220 with the front panel removed. Otherwise, the multimeter does not work. . - cheers, Pete Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/m
/archives//html/Amps/1999-08/msg00074.html (9,160 bytes)

13. R: [AMPS] L-Pi net...downside? (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Tue, 3 Aug 1999 07:36:13 -0700
? the dip you see with a dipmeter coupled to a Pi-network is not on the operating frequency. . Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting
/archives//html/Amps/1999-08/msg00075.html (8,510 bytes)

14. R: [AMPS] L-Pi net...downside? (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Tue, 3 Aug 1999 09:59:34 -0700
? Do you believe that a Pi-network is resonant on the working frequency, Peter? Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.htm
/archives//html/Amps/1999-08/msg00077.html (8,747 bytes)

15. R: [AMPS] L-Pi net...downside? (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Wed, 4 Aug 1999 04:39:07 -0700
? I am familar with control grid resonance. For the 3-500Z, this is 80 - 90 MHz. What is anti-resonant frequency of the control grid, Tom?. ? RL = 2000 ohms. R out equals 50-ohms. Freq = 7.00MHz. Q
/archives//html/Amps/1999-08/msg00084.html (9,883 bytes)

16. [AMPS] SB-220 input circuit (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Wed, 4 Aug 1999 04:52:28 -0700
? What was the failure mode for the kaput cathode coupling capacitors? ? Accessing the tuned inputs requires removing the front panel. For a SB-220 this should take no more than ten minutes. - cheer
/archives//html/Amps/1999-08/msg00085.html (9,437 bytes)

17. [AMPS] Pi-Net math (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Wed, 4 Aug 1999 09:05:32 -0700
? With Eimac's *Care and Feeding of Power Grid Tubes* formulae, Q is Definined as RL divided by the reactance of C1. There is no approximation. - On my Web site, there is an Excel 4 worksheet that p
/archives//html/Amps/1999-08/msg00088.html (9,268 bytes)

18. [AMPS] Pi-Net math (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Wed, 4 Aug 1999 12:36:15 -0700
? Where is the alleged approximation problem in the Care and Feeding formulae? Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html
/archives//html/Amps/1999-08/msg00091.html (8,231 bytes)

19. [AMPS] 2 amp questions (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Wed, 4 Aug 1999 15:06:13 -0700
Wired into the actual circuit works well. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Adm
/archives//html/Amps/1999-08/msg00093.html (7,405 bytes)

20. [AMPS] Pi-Net math (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Wed, 4 Aug 1999 16:36:43 -0700
? There is more than one way to figure Q. ? [chortle] ok ? To do it right, we really need to connect 2000-ohms across C1 and 50-ohms across C2. Want to make a wild guess as to whether this will incr
/archives//html/Amps/1999-08/msg00097.html (10,687 bytes)

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