- 1. [Amps] Dumb Question (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Fri, 17 Jan 2003 09:28:18 -0500
- Do I need to use back to back diodes on the B- rail as well as across the meter ?? I use one meter for both plate and grid current. See I told you it was a dumb question. Tnx Ed W3NR -- Outgoing mail
- /archives//html/Amps/2003-01/msg00136.html (6,384 bytes)
- 2. [Amps] Amp Problem (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Fri, 17 Jan 2003 10:23:54 -0500
- OK, I need some more help. I have no idling plate current. Meter shows about 10 ma. of grid current, but no idling plate current. At this point the only 2 options I have are, either all 4 811s went s
- /archives//html/Amps/2003-01/msg00138.html (6,562 bytes)
- 3. [Amps] Amp Problem Still (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Fri, 17 Jan 2003 20:29:40 -0500
- Well no joy in Hooterville. I ended my search for no idling plate current by replacing all 4 811s with a couple of known good ones. Still show grid current, but no idling plate current. Meters and sh
- /archives//html/Amps/2003-01/msg00146.html (7,160 bytes)
- 4. [Amps] Amp Problem Solved (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Sat, 18 Jan 2003 09:19:23 -0500
- Thanks to all (and I mean many) that offered help and guidance on my problem with no idling plate current. The culprit turned out to be the plate choke. Didn't discover the bad solder joint till it w
- /archives//html/Amps/2003-01/msg00148.html (6,634 bytes)
- 5. [Amps] Clipperton L (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Mon, 20 Jan 2003 17:39:03 -0500
- I added a tuned input to an old CL. On 160 I see no "dip" in the input SWR. The slug is all the way in. Do I try to add more C or more L ?? On 40 the slug is all the way out, but I do have a "dip". I
- /archives//html/Amps/2003-01/msg00168.html (6,908 bytes)
- 6. [Amps] 811A's & Bias (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Sun, 01 Dec 2002 08:40:21 -0500
- Is it really necessary to have operating bias on 811A's ? If so, is 4.5 to 5 volts a good value ? Can a string of 2 to 3 amp rectifier diodes be used instead of a Zener ? I am currently using a 47 oh
- /archives//html/Amps/2002-12/msg00000.html (6,023 bytes)
- 7. [Amps] Meter Shunts (score: 1)
- Author: edw3nr@nexband.com (Ed)
- Date: Sun, 08 Dec 2002 19:07:16 -0500
- I want to get away from the low value hand-made meter shunts. I plan on using the meter (a 0-1 ma) as a voltmeter to measure the drop across more standard values of resistance. Knowing that my Ohms L
- /archives//html/Amps/2002-12/msg00148.html (7,132 bytes)
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