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1. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 23 Mar 98 15:47:23 -0800; - The flywheel makes things mo betta, and it's always there. . During ssb modulation, the drive varies widely during each spoken word. However, max. peak drive and max. anode-I is essential to corre; /archives//html/Amps/1998-03/msg00373.html (9,144 bytes)
2. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Mon, 23 Mar 98 22:51:47 -0600; Again though, my point on matching network impedances still stands. If at a low drive level my tube impedance is say 150 Ohms and at high drive levels it drops to say 75 Ohms then a matching network; /archives//html/Amps/1998-03/msg00375.html (10,599 bytes)
3. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Tue, 24 Mar 1998 01:03:59 -0600; Snip..... Normal voice waveforms have in the vicinity of a 3.5:1 peak to average ratio. This must be taken into account when computing the input impedance to a grounded grid amp. Because as the catho; /archives//html/Amps/1998-03/msg00377.html (8,906 bytes)
4. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Tue, 24 Mar 1998 08:52:30 EST; Jon, etc., arent we complicating the issue a bit? In the classic GG circuit the input VSWR will change as you adjust the OUTPUT tank. Is it not then necessary to consider the complete path from excit; /archives//html/Amps/1998-03/msg00382.html (8,365 bytes)
5. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 24 Mar 98 06:57:36 -0800; Not perfect we can live with if it works good enough. Energy is stored in the tuned input flywheel during the positive half of the drive signal when the cathode is not drawing current. The stored en; /archives//html/Amps/1998-03/msg00389.html (13,027 bytes)
6. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: w4eto@rmii.com (Richard W. Ehrhorn); Date: Wed, 25 Mar 1998 00:29:13 -0000; Again though, my point on matching network impedances still stands. If at a low drive level my tube impedance is say 150 Ohms and at high drive levels it drops to say 75 Ohms then a matching network; /archives//html/Amps/1998-03/msg00394.html (13,563 bytes)
7. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Tue, 24 Mar 98 19:41:06 -0600; Dick, You make a lot of sense here. You're right now that I think about it. The whole conjugate match idea is based on linear amplifier designs. And for a class AB or B amp, you do not have a linear; /archives//html/Amps/1998-03/msg00396.html (11,222 bytes)
8. [AMPS] Re: Drive Level in amplifiers (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Tue, 24 Mar 1998 21:09:32 -0600; Snip.... And this is a trade-off between the need for a Rs that will allow the maximum transfer of power over an entire band while providing the needed fly wheel effect, (Trading a little Q for a lit; /archives//html/Amps/1998-03/msg00398.html (9,573 bytes)

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