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Total 311 documents matching your query.

81. [Amps] 4K Ultra Restoration (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 7 Dec 2005 12:06:37 -0500
After doing an inventory of my HV wire, I find that I have 17' of the real good stuff - 40KV. It is not enough to wire up a man-size amp but it will be enough for the 4KU. Regarding cleaning the tar,
/archives//html/Amps/2005-12/msg00068.html (8,874 bytes)

82. [Amps] 4K-Ultra Restoration (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 7 Dec 2005 12:23:53 -0500
I am going to replace all the 230VAC wiring with insulated multistrand AWG 14. According the ARRL Handbook, it should be able to handle 32A. Any disagreement? Bob ____________________________________
/archives//html/Amps/2005-12/msg00069.html (6,792 bytes)

83. [Amps] Henry 4K-Ultra Restoration (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 8 Dec 2005 12:04:35 -0500
All the wiring has been completed and now I am waiting on a blower. The stacked German muffin fans only produce .25" of water pressure and the 2 3000 rpm blowers in my junque box both measure 1.3" an
/archives//html/Amps/2005-12/msg00095.html (6,726 bytes)

84. [Amps] Henry 4K-Ultra (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 8 Dec 2005 18:09:31 -0500
Latest question for the group: I notice that there is a 1 pf capacitor (C20) that is supposed to be mounted right up next tot he tube. It is used in the tuning meter circuit. All I have is the top of
/archives//html/Amps/2005-12/msg00098.html (6,488 bytes)

85. [Amps] Henry 4K-Ultra (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 11 Dec 2005 10:45:24 -0500
I now have the operating and maintenance manual, thanks to W6RU Terry. I though that the alignment of the tune control and all the other components that run off the common drive chain would be covere
/archives//html/Amps/2005-12/msg00118.html (7,063 bytes)

86. [Amps] Henry 4K-Ultra (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 11 Dec 2005 21:58:07 -0500
FWIW, the 4KU that I am restoring/cleaning does not have a serial number plate on it so I was unable to tell how old it was.....until I spoke with an ex Henry employee this evening. I asked him what
/archives//html/Amps/2005-12/msg00127.html (7,750 bytes)

87. [Amps] Henry 4K Ultra (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 27 Dec 2005 01:21:58 -0500
I am still wrestling with the alignment of my 4KU. I am told that the 4KU's that were sold to the military were supplied with a "Service Manual" that had much more info regarding how to set up the ga
/archives//html/Amps/2005-12/msg00342.html (6,815 bytes)

88. Re: [Amps] Henry 4K Ultra (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 5 Jan 2006 00:50:19 -0500
Thanks for the info Steve. I have already seen those pics. I adjusted everything for 20M today, taking off the chain and adjusting everything separately and got it working really great...on 20M. Then
/archives//html/Amps/2006-01/msg00168.html (11,253 bytes)

89. [Amps] 4-400A Input impedance (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 18 Jan 2006 11:38:19 -0500
Anybody know what the input impedance is for a pair of 4-400A's operating plate modulated class Connected in parallel? Is 50 ohms close? Thanks, Bob Maser W6TR _______________________________________
/archives//html/Amps/2006-01/msg00450.html (6,827 bytes)

90. [Amps] Amps on DXpedition to Malta (9H). (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 18 Jan 2006 11:49:56 -0500
The 77SX is a ridiculous recommendation for a DXpedition. It is too big and since the Malta restricts power to 400W, breaking the law might land you in jail or at the very least, confiscate all your
/archives//html/Amps/2006-01/msg00453.html (7,043 bytes)

91. [Amps] The Ultimate Boatanchor (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Fri, 20 Jan 2006 00:12:17 -0500
Hey guys, the ultimate boatanchor is up for sale to the highest bidder on eBay. It even has the anchor chain already attached for your convenience. Made by Collins to boot. I wonder who will the luck
/archives//html/Amps/2006-01/msg00473.html (6,743 bytes)

92. [Amps] Telephone Interference Suppressors (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 23 Jan 2006 20:22:04 -0500
Anybody know who was it that used to sell the telephone RFI filters in the back section of QST? I looked back a few issues and can't find his ad. They had a RJ11 male connector on one end and the fem
/archives//html/Amps/2006-01/msg00562.html (7,412 bytes)

93. [Amps] Henry 4K Ultra Tank Impedance (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 29 Jan 2006 16:15:58 -0500
Does anyone know what Henry used as the intermediate impedance between the Pi of the tank circuit and the L portion? I tried 300 ohms and the amp would not track from band to band. Bob W6TR _________
/archives//html/Amps/2006-01/msg00700.html (6,497 bytes)

94. [Amps] Amp for sale on eBay (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 2 Feb 2006 16:47:37 -0500
Just when you thought you had enough amplifiers, along comes a deal that's hard to pass up. Check this out! Don't forget I saw it first. No cheating in line guys. http://cgi.ebay.com/VINTAGE-HAM-RADI
/archives//html/Amps/2006-02/msg00029.html (6,581 bytes)

95. Re: [Amps] ARRL Handbook Amp (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 16 Mar 2006 11:53:08 -0500
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-03/msg00463.html (8,482 bytes)

96. Re: [Amps] ARRL Handbook Amp (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 16 Mar 2006 12:29:10 -0500
The 4K-U is still a crank and crank amp but now when I crank C1, all that adjusts is C1 and the Pi and L roller inductors. My 4K-U was really dirty with lots of cigarette stains and smell. I took it
/archives//html/Amps/2006-03/msg00470.html (10,936 bytes)

97. Re: [Amps] Tuned input board on SB-220 (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 23 Mar 2006 10:38:02 -0500
It works FB in my Henry 4K Ultra too. It even showed me that I had a bad coax connector on the output of the amp because it started to retune everytime the connection would arc. As soon as I repaired
/archives//html/Amps/2006-03/msg00614.html (12,975 bytes)

98. [Amps] Filament Transformer Needed (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 13 Apr 2006 23:10:27 -0400
I am in need of a 6.3VCT @ 25A for a 3CX1200D7 conversion I'm doing on a 4K Ultra. I would prefer one that would go under the RF Deck but that is limited to a 3.5" cube. A larger transformer will for
/archives//html/Amps/2006-04/msg00240.html (6,683 bytes)

99. [Amps] Glass Chimney for a 3CX1200D7 (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 23 Apr 2006 23:28:59 -0400
Anyone know the dimensions are for a Coleman 220 lantern chimney? Does anyone have a source for glass chimneys for a 3CX1200D7? 3-4" high with a diameter of 3.4". Bob W6TR ___________________________
/archives//html/Amps/2006-04/msg00349.html (6,335 bytes)

100. Re: [Amps] Glass Chimney for a 3CX1200D7 (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 24 Apr 2006 21:19:04 -0400
Do you remove the label or is just the fact that you used a food container tacky enough? Bob -- Original Message -- From: "R; Measures" <r@somis.org> To: "Bob Maser" <bmaser@tampabay.rr.com> Cc: "AMP
/archives//html/Amps/2006-04/msg00370.html (7,986 bytes)

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