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Total 10 documents matching your query.

1. [Amps] Viewstar PT 1000a (score: 1)
Author: "K4elv@bellsouth,net" <K4elv@bellsouth.net>
Date: Mon, 7 Apr 2008 11:50:58 -0500
Good day to the group. I am new to the group and was hoping that someone out there may have an idea to help me with a problem I am having with this PT 1000a. I purchased this unit new at Dayton in 19
/archives//html/Amps/2008-04/msg00096.html (8,121 bytes)

2. Re: [Amps] Output Matching Network, Need Advice (score: 1)
Author: "K4elv@bellsouth,net" <K4elv@bellsouth.net>
Date: Thu, 26 Feb 2009 02:01:13 -0600
Scott I built YU1AW's design a couple of years ago. Used 1/16 inch copper tubing from O'Reilly's auto store. Think it was about 6 - 8 turns maybe 2 in. in dia. Worked like a champ no c nages with the
/archives//html/Amps/2009-02/msg00680.html (10,189 bytes)

3. [Amps] winding toroids (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Fri, 30 Jul 2010 12:46:19 -0500
When winding toroids is there any reason (other than mechanical stability) why stranded wire can not, or should not be used? Thanks, Mike K4ELV _______________________________________________ Amps ma
/archives//html/Amps/2010-07/msg00356.html (6,379 bytes)

4. [Amps] winding toroids (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Sat, 31 Jul 2010 12:39:57 -0500
I want to thank all who offered their comments/suggestions. In addition to the answer to my question, I also received additional information which will be helpful. 73, Mike K4ELV ____________________
/archives//html/Amps/2010-07/msg00397.html (7,113 bytes)

5. [Amps] Cathode input circuit (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Mon, 1 Nov 2010 09:28:14 -0500
A question for the group. Some time back, ZL1AXB published a circuit for a single 813 grounded grid, using a tuned coil input circuit. He referred to it as a "bifilar wound coil." I built the amp and
/archives//html/Amps/2010-11/msg00001.html (6,764 bytes)

6. [Amps] NOS 811's & 30L1 (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Wed, 21 Sep 2011 14:25:23 -0500
I just completed the restoration of a 30L1, i.e., new Harbach board, "matched set" of 811's. Brought the unit up slowly with a Variac. 110 VAC line voltage, 1800 VDC unloaded on plates. All seemed ok
/archives//html/Amps/2011-09/msg00138.html (7,614 bytes)

7. [Amps] 811's & 30L1 (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Wed, 21 Sep 2011 21:02:00 -0500
I want to thank each of those who responded. To answer one question, these tubes are NOS JAN's made by Cetron from Nebraska. The seller has offered to replace all four. What I was looking for were ex
/archives//html/Amps/2011-09/msg00145.html (6,774 bytes)

8. [Amps] meter (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Mon, 4 Jun 2012 12:30:00 -0500
Hey guys. I'm in the middle of an amp project and found that my junk box of meters didn't have what I need. Since the project case is small I need to find a Simpson 2 3/8 square meter either 1 amp or
/archives//html/Amps/2012-06/msg00007.html (6,439 bytes)

9. [Amps] 813 efficiency (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Wed, 20 Feb 2013 14:18:04 -0600
Some time ago (maybe 2 years) there were comments filed on this site regarding increasing the efficiency of the 813 tube on 21 - 28 mhz. I've looked through my history of this group but failed to fin
/archives//html/Amps/2013-02/msg00165.html (7,125 bytes)

10. [Amps] 813 efficiency (score: 1)
Author: "Mike Lord" <k4elv@bellsouth.net>
Date: Sat, 23 Feb 2013 14:07:45 -0600
I just wanted to take a moment to thank all who took the time to respond to my query. The response was amazing. So much information and ideas were shared. I feel like I have a much better understandi
/archives//html/Amps/2013-02/msg00218.html (8,007 bytes)


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