Search String: Display: Description: Sort:

Results:

References: [ +from:R@somis.org: 2100 ]

Total 2100 documents matching your query.

1. Re: [Amps] Parasitics (score: 1)
Author: rlm <r@somis.org>
Date: Thu, 21 Aug 2003 07:36:15 -0700
** I agree, Peter. Oscillation at the operating frequency is the result of a grid-driven amplifier being out of neutralization. This is clearly not a parasitic because a parasite is defined as regen
/archives//html/Amps/2003-08/msg00004.html (9,037 bytes)

2. Re: [Amps] anyone else been contacted? (score: 1)
Author: rlm <r@somis.org>
Date: Wed, 27 Aug 2003 08:53:40 -0700
** Free advice: Go to your bank and get a counterfeit-bill testing pen and ask for the bank's advice on spotting bogus bills. Require payment in U.S. Dollars. Test the money. _______________________
/archives//html/Amps/2003-08/msg00049.html (9,319 bytes)

3. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Wed, 27 Aug 2003 09:01:28 -0700
? primarily by measuring the resistance of the secondary winding. Look in "Amplifiers" on my Web site for some rule of thumb formulas. ? Duty-cycle considerations. For SSB, a 600W-CCS rated transfor
/archives//html/Amps/2003-08/msg00050.html (7,909 bytes)

4. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Thu, 28 Aug 2003 04:01:40 -0700
? Cashier's cheques can be forged. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2003-08/msg00059.html (9,668 bytes)

5. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Thu, 28 Aug 2003 19:42:06 -0700
9x to 10x is closer to it since the conduction period is c. 1mS per half-cycle. Amen, Mark _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesti
/archives//html/Amps/2003-08/msg00070.html (10,396 bytes)

6. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Sat, 30 Aug 2003 12:12:00 -0700
** Peak-I is typically 8 to 10 times the DC output-I in a FWB C-input config. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailma
/archives//html/Amps/2003-08/msg00084.html (8,629 bytes)

7. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Sun, 31 Aug 2003 07:35:18 -0700
** Approximation formulae are given in: http://www.somis.org/D.amplifiers.2.html The math is multification and division. The needed equipment is one clip-lead and one ohm-meter. ____________________
/archives//html/Amps/2003-09/msg00001.html (7,993 bytes)

8. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Mon, 1 Sep 2003 06:41:14 -0700
** Ian -- Does the PSU Designer program have an entry for Mains Resistance?. How does one measure this quantity? Thanks. _______________________________________________ Amps mailing list Amps@contes
/archives//html/Amps/2003-09/msg00004.html (9,405 bytes)

9. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Tue, 2 Sep 2003 07:46:26 -0700
** sounds good but if the transformer core is not Hipersil&reg;, there is an additional loss due to flux coupling. ** Only those amplifiers that use a resonant-choke filter read mains current correc
/archives//html/Amps/2003-09/msg00016.html (8,561 bytes)

10. Re: [Amps] anyone else been contacted? (score: 1)
Author: rlm <r@somis.org>
Date: Tue, 2 Sep 2003 07:52:21 -0700
Money that contains certified serial numbers from the D.B. Cooper ransom is probably worth >100-times face value on Ebay. _______________________________________________ Amps mailing list Amps@contes
/archives//html/Amps/2003-09/msg00018.html (9,117 bytes)

11. Re: [Amps] PS Theory ? (score: 1)
Author: rlm <r@somis.org>
Date: Wed, 3 Sep 2003 05:56:26 -0700
** Peter W. Dahl told me that in non-Hipersil&reg; transformers, flux loss and R loss are about equal. ** ok _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2003-09/msg00025.html (9,363 bytes)

12. Re: [Amps] HA-10 Warrior Plate Choke (score: 1)
Author: rlm <r@somis.org>
Date: Thu, 4 Sep 2003 07:04:47 -0700
** What happened to the original choke, Bill? _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2003-09/msg00038.html (7,034 bytes)

13. Re: [Amps] HA-10 Warrior Plate Choke (score: 1)
Author: rlm <r@somis.org>
Date: Thu, 4 Sep 2003 10:12:28 -0700
Thanks. Maybe the amp was used on a dx-pedition to HE11 and the wire got toasted? Was the original, g-g "neutralization" circuit in place when the choke smoked? ______________________________________
/archives//html/Amps/2003-09/msg00039.html (8,746 bytes)

14. Re: [Amps] HA-10 Warrior Plate Choke (score: 1)
Author: rlm <r@somis.org>
Date: Thu, 4 Sep 2003 07:57:50 -0700
Thanks, Bill. Is the dark color uniform or concentrated in bands? _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/am
/archives//html/Amps/2003-09/msg00040.html (7,737 bytes)

15. Re: [Amps] Roller Inductor Lubrication (score: 1)
Author: rlm <r@somis.org>
Date: Fri, 5 Sep 2003 03:00:28 -0700
Paul - - Grease mixed with graphite seems to work ok. I would not use Teflon grease since Teflon is a good insulator. _______________________________________________ Amps mailing list Amps@contesting
/archives//html/Amps/2003-09/msg00045.html (7,341 bytes)

16. Re: [Amps] ROLLER INDUCTOR LUBRICANT (score: 1)
Author: rlm <r@somis.org>
Date: Fri, 5 Sep 2003 09:47:23 -0700
? Is molybdneum disulphide a conductor of electricity? ? Does IBM Corp manufacture roller inductors? _______________________________________________ Amps mailing list Amps@contesting.com http://lists
/archives//html/Amps/2003-09/msg00049.html (7,357 bytes)

17. Re: [Amps] Mail Order Operations (score: 1)
Author: rlm <r@somis.org>
Date: Fri, 5 Sep 2003 09:55:30 -0700
? 99% of the Canadian Hams that I have sold suppressor retrofit kits to have been 100% honest. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont
/archives//html/Amps/2003-09/msg00050.html (8,640 bytes)

18. Re: [Amps] Ameritron AL-1500 (score: 1)
Author: rlm <r@somis.org>
Date: Sat, 6 Sep 2003 00:13:50 -0700
? Rick -- The main problem is not the HV PS, it is that the AL-1500's tank L needs to be cut in half for 2A of anode-I instead of 1A. Also, the extant tank-L conductors are too small - even for 1, 88
/archives//html/Amps/2003-09/msg00054.html (7,399 bytes)

19. Re: [Amps] Ameritron AL-1500 (score: 1)
Author: rlm <r@somis.org>
Date: Sat, 6 Sep 2003 08:23:01 -0700
** ... provided one adds a VHF parasitic suppressor to the anode circuit, adds a cooling fan for the tank and bandswitch, and removes the RF-actuated T/R bias switch.. ______________________________
/archives//html/Amps/2003-09/msg00059.html (7,600 bytes)

20. Re: [Amps] HA-10 Warrior "Neutralizing Capacitor" (score: 1)
Author: rlm <r@somis.org>
Date: Sun, 7 Sep 2003 07:21:05 -0700
** As I understand it, the RCA g-g neutralizing circuit reduced feedback at the operating frequency. The problem was/is that an 811A in g-g configuration is unconditionally stable at HF. The sticky w
/archives//html/Amps/2003-09/msg00066.html (8,054 bytes)

Current List: 1 - 20
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu