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81. Re: [Amps] Gassy Tubes/Technology Museum looking for artifacts (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 26 Jul 2007 13:03:57 -0400
That sure as heck beats my using a 6146 as a receiver preamp. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listi
/archives//html/Amps/2007-07/msg00440.html (9,567 bytes)

82. Re: [Amps] 1625s (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 26 Jul 2007 13:31:20 -0400
That was exactly what I built mine for! However these days Im regressing even further. I'll have my 1957-59 station finished this weekend. Johnson Viking I and HQ-129X rcvr. But I will not build the
/archives//html/Amps/2007-07/msg00443.html (7,343 bytes)

83. Re: [Amps] Fixing gassy tubes? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 26 Jul 2007 20:48:18 -0400
So youre swapping out the 6146's for the Penta? Age is catching up Roger, its the HT-33. Great old amps. I might even have a socket. Carl KM1H _______________________________________________ Amps mai
/archives//html/Amps/2007-07/msg00449.html (8,366 bytes)

84. Re: [Amps] Ameritron amp purchase decision questions (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 27 Jul 2007 09:47:32 -0400
The tube costs listed are per tube, the AL-572 uses 4 tubes and the AL-82 uses 2 as does the AL-800H. Then there are glass vs ceramic, instant on vs timer delay and also life vs cost. To a much large
/archives//html/Amps/2007-07/msg00460.html (9,421 bytes)

85. Re: [Amps] Gassy Tubes/Technology Museum looking for artifacts (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 27 Jul 2007 10:41:44 -0400
Aircraft and many military vehicles were 12 or 24V for the most part. I cant recollect the 807 used in anything but shipboard equipment and then only as modulators. Maybe some shore based equipment.
/archives//html/Amps/2007-07/msg00463.html (10,796 bytes)

86. Re: [Amps] Ameritron amp purchase decision questions (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 27 Jul 2007 17:48:02 -0400
Time to move production to some 4th world country and get an 8877 for $200. Anyone want to move to Iraq? I'll bet that the Chinese will be the first to move as soon as their economy makes it too expe
/archives//html/Amps/2007-07/msg00473.html (9,764 bytes)

87. Re: [Amps] Ameritron amp purchase decision questions (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 28 Jul 2007 08:27:10 -0400
I wasnt referring to Eimacs pricing which was always ridiculous. I want to see a $200 8877 in 2008 dollars. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting
/archives//html/Amps/2007-07/msg00481.html (9,997 bytes)

88. Re: [Amps] FW: economics 3501 (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 29 Jul 2007 09:59:01 -0400
Canada, Saudi Arabia and Mexico, in that order, are the biggest suppliers to the US. Canada has proven to the world that it is safe and feasible to expand drilling in the Artic with leading edge tech
/archives//html/Amps/2007-07/msg00505.html (18,340 bytes)

89. Re: [Amps] 807s (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 30 Jul 2007 09:18:30 -0400
The 1624 was not a true 807. Dissapation was 25W, a 600V max rating and different interelectrode capacitances. Another not mentioned was the 807W/5933 which had a shorter envelope an a much taller ba
/archives//html/Amps/2007-07/msg00519.html (9,277 bytes)

90. Re: [Amps] Looking to purchase a good 6 meter amplifier (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 30 Jul 2007 16:35:56 -0400
In linear service 1000W AM input is around 300W out, within the ratings of the tubes. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont
/archives//html/Amps/2007-07/msg00527.html (9,883 bytes)

91. Re: [Amps] Alpha 89 Fuse Blowing (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 6 Aug 2007 15:24:16 -0400
If those amps dont have a HV surge resistor then install one. Something in the area of 20-25 Ohms 20-50W will do. Be sure it is a true wire wound "Vitreous Enamel" style and not cement. The purpose o
/archives//html/Amps/2007-08/msg00014.html (12,854 bytes)

92. Re: [Amps] Alpha 89 Fuse Blowing (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 6 Aug 2007 19:22:02 -0400
I dont know the impedence of the Alpha PS but that sounds like too low a resistance to do much good. The 89 is blowing fuses before the high priced fault protection takes effect. Since Alpha never bo
/archives//html/Amps/2007-08/msg00018.html (16,068 bytes)

93. Re: [Amps] 1625SS (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Tue, 7 Aug 2007 13:19:23 -0400
Somewhere in my archives (the one between my ears) I remember reading that the ARC -5/SCR series of transmitters were designed in the mid 30's (1937 comes to mind). It wouldnt have been in QST of the
/archives//html/Amps/2007-08/msg00021.html (9,823 bytes)

94. Re: [Amps] 1625SS (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 8 Aug 2007 09:05:39 -0400
The 717A was a popular tube for perking up the RF stage of boatanchor receivers as it had the same pinout of the popular RF tubes of the day. It made my old HQ-129X come alive on 10/15M back in the l
/archives//html/Amps/2007-08/msg00027.html (8,212 bytes)

95. Re: [Amps] AL-1500 (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 8 Aug 2007 12:31:18 -0400
That amp doesnt need it. If you have oscillations something else is wrong. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/
/archives//html/Amps/2007-08/msg00032.html (7,732 bytes)

96. Re: [Amps] LK 500 ZA heat (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 13 Aug 2007 12:23:58 -0400
That series of amps went thru several fan models and finally settled on a German made metal one. The heat would warp the plastic ones causing them to slow down. The metal fan in my LK-500ZC was insta
/archives//html/Amps/2007-08/msg00046.html (7,969 bytes)

97. Re: [Amps] LK 500 ZA heat (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 13 Aug 2007 14:57:33 -0400
Tell that to the millions of car owners with electric fans that pull the air thru the restrictive radiator. Tests have long proven that trying to push the air thru the radiator is a bad idea. Placin
/archives//html/Amps/2007-08/msg00048.html (8,811 bytes)

98. Re: [Amps] LK 500 ZA heat (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 13 Aug 2007 15:31:35 -0400
Denny was on the ground and running with Cary even before the banks closed up Amp Supply. He even built the LK-800A at Cary for several years. I wouldnt be at all suprised if he still builds a few to
/archives//html/Amps/2007-08/msg00051.html (10,664 bytes)

99. Re: [Amps] LK 500 ZA heat (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 13 Aug 2007 18:01:56 -0400
The folks at Kenwood understood air flow and designed a good system that really doesnt need any additional help. They use the exhaust method on their old tube transceivers also and it works great. Th
/archives//html/Amps/2007-08/msg00057.html (9,710 bytes)

100. Re: [Amps] LK 500 ZA heat (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 13 Aug 2007 18:19:46 -0400
Tom, you are so predictable. When you cant come up with a real answer you resort to personal attacks. I dont know when the last time you lifted the hood in a car but horsepower robbing engine driven
/archives//html/Amps/2007-08/msg00058.html (11,044 bytes)

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