Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+abnormallly\s+high\s+plate\s+current\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+abnormallly\s+high\s+plate\s+current\s*$/: 15 ]

Total 15 documents matching your query.

1. [AMPS] abnormallly high plate current (score: 1): Author: Ku7i@worldnet.att.net (Lane Zeitler); Date: Wed, 5 Jan 2000 18:58:57 -0800; Gents, For some reason I am getting higher than normal plate current in a single 3-500Z amp. On 160 meters with 400mA of Ip and 3500 volts under load the amp is only delivering 500 watts of output. O; /archives//html/Amps/2000-01/msg00132.html (8,536 bytes)
2. [AMPS] abnormallly high plate current (score: 1): Author: Ku7i@worldnet.att.net (Lane Zeitler); Date: Wed, 5 Jan 2000 19:19:11 -0800; I forgot to mention that I am getting the same readings with other known good full out Eimac 3-500Zs so it is not the tube(s). Filament voltage measured at the tube socket is 5.22 volts. Lane Ku7i am; /archives//html/Amps/2000-01/msg00133.html (9,329 bytes)
3. [AMPS] abnormallly high plate current (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Thu, 6 Jan 2000 04:47:03 -0600; Take all the precautions after shutting the am down and feel the choke to see if it is warm/hot. (((73))) Phil, K5PC -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contestin; /archives//html/Amps/2000-01/msg00139.html (8,664 bytes)
4. [AMPS] abnormallly high plate current (score: 1): Author: Mike@g0mjw.freeserve.co.uk (Mike Willis); Date: Thu, 6 Jan 2000 11:10:49 -0000; What is the bias voltage ? Have you tuned it up properly and are both meter shunts still the correct resistance ? -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.co; /archives//html/Amps/2000-01/msg00141.html (8,662 bytes)
5. [AMPS] abnormallly high plate current (score: 1): Author: measures@vcnet.com (measures); Date: Thu, 6 Jan 2000 06:27:15 -0700; Checking the meter accuracy is a good idea. So is measuring the R of the dummy load. Wattmeters can not give accurate readings unless the load is 50 ohms, as checked with a DMM. // Heath cantennas a; /archives//html/Amps/2000-01/msg00145.html (9,254 bytes)
6. [AMPS] abnormallly high plate current (score: 1): Author: Ku7i@worldnet.att.net (Lane Zeitler); Date: Thu, 6 Jan 2000 04:46:58 -0800; This all started when I went to calibrate the plate current meter. That is when I discovered that the plate current was actually much higher that I thought. The dummy load is not an issue since it ha; /archives//html/Amps/2000-01/msg00148.html (10,651 bytes)
7. [AMPS] abnormallly high plate current (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Thu, 06 Jan 2000 07:10:55 -0800; Lane, What's the grid current, and how much driving power is it getting? If you are driving it harder and getting less output, the tube may be dying. I had a similar situation, and it was due to a ti; /archives//html/Amps/2000-01/msg00150.html (8,370 bytes)
8. [AMPS] abnormallly high plate current (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Thu, 06 Jan 2000 07:11:59 -0800; Oops. Then I'm stumped. 73, Vic, K2VCO Fresno CA -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems:; /archives//html/Amps/2000-01/msg00151.html (8,871 bytes)
9. [AMPS] abnormallly high plate current (score: 1): Author: W4EF@pacbell.net (Michael Tope); Date: Thu, 06 Jan 2000 08:19:04 -0800; Lane, Are any of amp components (aside from the tube) running unusually hot? If not, conservation of energy says that the missing output power is being dissipated in the tube? Mike, W4EF This all sta; /archives//html/Amps/2000-01/msg00155.html (11,482 bytes)
10. SV: [AMPS] abnormallly high plate current (score: 1): Author: harlins@swipnet.se (Lars Harlin); Date: Thu, 6 Jan 2000 18:25:10 +0100; Maybe you should question the Ip reading anyway... Try to measure with an outboard multimeter. Be careful!! HV is lethal! Another thing to consider is if the meter is reading plate current or cathod; /archives//html/Amps/2000-01/msg00156.html (10,002 bytes)
11. SV: [AMPS] abnormallly high plate current (score: 1): Author: measures@vcnet.com (measures); Date: Thu, 6 Jan 2000 10:28:04 -0700; Not as lethal as the electric-mains. With HV one usually winds up across the room with some missing hide. . . With (lower-V) electric-mains, one typically can not let go/gets "hung up". . The bottom; /archives//html/Amps/2000-01/msg00158.html (10,041 bytes)
12. [AMPS] abnormallly high plate current (score: 1): Author: measures@vcnet.com (measures); Date: Thu, 6 Jan 2000 10:28:05 -0700; hows about going for an exorcism, Mike? - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative request; /archives//html/Amps/2000-01/msg00160.html (12,320 bytes)
13. [AMPS] abnormallly high plate current (score: 1): Author: Mike@g0mjw.freeserve.co.uk (Mike Willis); Date: Thu, 6 Jan 2000 19:07:21 -0000; 5.22 Volts is 0.22V too high. You should consider fixing this as tube life is affected greatly by filament voltage. The 100mA bias is OK. A little high perhaps but quite within spec. You have 3500V,; /archives//html/Amps/2000-01/msg00165.html (10,060 bytes)
14. SV: [AMPS] abnormallly high plate current (score: 1): Author: sm3jla@algonet.se (Mikael Westerlund); Date: Fri, 7 Jan 2000 19:56:31 +0100; If all figures is true you should se the anod changing colour very fast! Even smelling the hot stuff! I mean 1400w input and 500w output on a single 3-500z sounds as you need a hell of a fan to me. M; /archives//html/Amps/2000-01/msg00176.html (10,087 bytes)
15. SV: [AMPS] abnormallly high plate current (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 7 Jan 2000 11:24:19 -0700; [chortle] later, Mike - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@co; /archives//html/Amps/2000-01/msg00178.html (8,385 bytes)

Current List: 1 - 15
Page: [1]