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1. [AMPS] HF Power Divider/Combiner (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 11 Jun 2001 12:13:58; Yes. RF Parts builds, and markets one such combiner, good to (advertised) 5Kw. I have used it at 4Kw PEP with no problems. Cost was around 20 dollars, if memory serves me well. RF Parts. Your welcom; /archives//html/Amps/2001-06/msg00090.html (7,321 bytes)
2. [AMPS] 3CX3000A7 (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Sun, 11 Mar 2001 17:27:27; While it is a pig to drive, 400 watts of input should net you quite a bit of output. And he should be able to get legal limit from a typical 100 watt exciter. Easily fixed. Place a small amount of L; /archives//html/Amps/2001-03/msg00081.html (9,995 bytes)
3. [AMPS] another MLA-2500 question (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Sun, 11 Mar 2001 17:29:29; Stan, This typically involves changing the impedance / swamping resistors of the input circuit. --Toll_Free _________________________________________________________________ Get your FREE download of; /archives//html/Amps/2001-03/msg00083.html (6,720 bytes)
4. [AMPS] 8877/GS35b (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Sun, 11 Mar 2001 17:32:04; Getting 4000 is easy. I have seen 5500. Regularly. In a mobile. Actually, we have used successfully 5 of the 8877s to drive a pair of 4CX10Ks Toll_Free ______________________________________________; /archives//html/Amps/2001-03/msg00084.html (7,607 bytes)
5. [AMPS] 8877/GS35b (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 12 Mar 2001 21:12:05; Please prove your comment. And that is to 15Kw Rich. I am speaking of the same system that you and Mauri told me was totally incomprehensible and impossible over a year ago. This system does 70 thou; /archives//html/Amps/2001-03/msg00103.html (9,231 bytes)
6. [AMPS] 8877/GS35b (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 12 Mar 2001 21:12:54; Please provide proof. Thank you. Toll_Free _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- FAQ on WWW: http://w; /archives//html/Amps/2001-03/msg00104.html (7,398 bytes)
7. [AMPS] 3CX3000A7 (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 12 Mar 2001 21:18:28; I hope you either did this with tube in place, or used another capacitor to simulate the Cin, Cout and Cstray. Otherwise, we might have just found your problem :) Toll_Free _________________________; /archives//html/Amps/2001-03/msg00105.html (8,563 bytes)
8. [AMPS] 3CX3000A7 (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 12 Mar 2001 22:19:34; Phil, et al, A lot of the CB amps built using one or more of the 3CX3K tubes also don't use a socket at all, but suspend the tube in a delron makeshift chimney. It isn't pretty, but it works. Toll_Fr; /archives//html/Amps/2001-03/msg00107.html (7,806 bytes)
9. [AMPS] Additional Tube Brand Question (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Thu, 01 Feb 2001 16:04:23; I found an easy fix for that. Use #12 wire (what I had on hand) to run a string of zeners perfboard mounted to the fan entrance to the SB220. A simple angle bracket attached the zeners to the stock; /archives//html/Amps/2001-02/msg00019.html (8,537 bytes)
10. [AMPS] Additional Tube Brand Question (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Thu, 01 Feb 2001 17:20:12; Sorry, had other things in mind. Replace "zeners" in the above statement with "diodes". I use the Rich Measures method of tapping ordinary silicon diodes, but took into acct. the temperature drift a; /archives//html/Amps/2001-02/msg00023.html (8,543 bytes)
11. [AMPS] Amps Power Conservation Measure (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Thu, 01 Feb 2001 18:42:10; Most shootouts occur on Saturday morning to afternoon, because of the need for most of the competitors to have the next Sunday available to drive home and go to work on Monday. Toll Free ___________; /archives//html/Amps/2001-02/msg00029.html (7,605 bytes)
12. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 14:03:06; This is bad advice. The SB220 should ALWAYS be started in the CW position to limit inrush current. NEVER start the SB220 in the SSB position, as it puts too much strain on components. The best idea; /archives//html/Amps/2001-02/msg00056.html (9,949 bytes)
13. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 15:44:39; Has been discussed on this list a few times. You don't believe starting an amplifier that has no step start on the higher voltage portion of the transformer to be a problem? Think about it. Less win; /archives//html/Amps/2001-02/msg00059.html (10,431 bytes)
14. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 15:49:07; As well as the efficiency of the amplifier. Toll Free _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- FAQ on WW; /archives//html/Amps/2001-02/msg00061.html (9,407 bytes)
15. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 19:04:13; Although I agree, what would you rather have them see, higher or lower R? I would tend to think that the higher R of the primary in CW position (meaning, more turns) would lead to less of a drain on; /archives//html/Amps/2001-02/msg00072.html (9,679 bytes)
16. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 19:06:37; Mauri, I do recognize the overall gain does increase, but the efficiency does not. I draw less mains power to get 500 watts of output on my SB220 on CW position than I do on the higher SSB position,; /archives//html/Amps/2001-02/msg00073.html (9,735 bytes)
17. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 19:37:19; Mauri, I do recognize the overall gain does increase, but the efficiency does not. I draw less mains power to get 500 watts of output on my SB220 on CW position than I do on the higher SSB position,; /archives//html/Amps/2001-02/msg00075.html (9,638 bytes)
18. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Fri, 02 Feb 2001 20:57:30; Now, my 8877 on 144 MHz is a different animal. It takes a full 1 min for the heaters to get the cathode up to operating temp. Here, it's smart to wait til the thing warms up. Eimac recommends 180 sec; /archives//html/Amps/2001-02/msg00076.html (9,380 bytes)
19. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Thu, 08 Feb 2001 19:34:37; Maybe in the Euro world, but here in the states, it doesn't. I work for the 2nd largest HVAC manufacturer in the world (nice, since high speed, high volume blowers are easy for me to procure :) ), a; /archives//html/Amps/2001-02/msg00194.html (10,345 bytes)
20. [AMPS] Runaway amp (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Tue, 20 Feb 2001 16:25:09; Chortle... It is legal, if into a dummy load while testing a amp that has a problem. Toll Free _________________________________________________________________ Get your FREE download of MSN Explore; /archives//html/Amps/2001-02/msg00270.html (7,984 bytes)

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