Mail Archive Search: <+from:johndtate@post.com>

Results:

References: [ +from:johndtate@post.com: 15 ]

Total 15 documents matching your query.

1. [Amps] 4cx800a (score: 1): Author: johndtate@post.com; Date: Wed, 17 Feb 2010 16:44:30 -0500; Intersting thread. If you go to http://www.svetlana-tubes.com/ and look at the site, they indicate the following ceramic tubes: 3CX400A7 3CX800A7 3CPX800A7 4CX250B 4CX250R 4CX350A 4CX400A 4CX800A 4CX; /archives//html/Amps/2010-02/msg00498.html (7,874 bytes)
2. [Amps] 120 cycle hum from Henry 2K-4 (score: 1): Author: johndtate@post.com; Date: Thu, 18 Feb 2010 18:30:43 -0500; I just acquired a Henry 2K-4 console linear amplifier. I like to run AM as well as the other modes. The Henry is rated for continous duty and as AM is closer to continous than SSB, I figured it was a; /archives//html/Amps/2010-02/msg00526.html (8,394 bytes)
3. Re: [Amps] 120 cycle hum from Henry 2K-4 (score: 1): Author: johndtate@post.com; Date: Thu, 18 Feb 2010 19:49:02 -0500; Steve, yes in CW mode too. It's not coming from audio. Do you still get the same hum if you transmit a CW carrier and not AM? (Mode switch in CW...)? If it's the amplifier, you should. If the mike is; /archives//html/Amps/2010-02/msg00530.html (7,581 bytes)
4. Re: [Amps] 120 cycle hum from Henry 2K-4 (score: 1): Author: johndtate@post.com; Date: Thu, 18 Feb 2010 21:27:02 -0500; Steve, It's also present in CW mode. It's on the scope and it's heard in my receiver and others. It's present whether I use the DX-60 or the TS-570 in any mode that produces a carrier, with or withou; /archives//html/Amps/2010-02/msg00538.html (12,148 bytes)
5. Re: [Amps] 120 cycle hum from Henry 2K-4 (score: 1): Author: johndtate@post.com; Date: Thu, 18 Feb 2010 23:30:35 -0500; Maybe not the amplifier. Hums can be really tricky. When I did that check last night, I hadn't had the ground lug on the back of the Henry tied to my station ground. I grounded it very well with 10 g; /archives//html/Amps/2010-02/msg00546.html (14,504 bytes)
6. [Amps] Henry Hum (score: 1): Author: johndtate@post.com; Date: Sun, 21 Feb 2010 20:15:52 -0500; today's amps a simple C-input is best. 73, Bill W6WRT That statement is no longer rings true. AM has come out of the closet again and is many hams prefered mode. It certainly is my prefered mode for; /archives//html/Amps/2010-02/msg00624.html (7,183 bytes)
7. [Amps] 120 cycle hum from Henry 2K-4 (score: 1): Author: johndtate@post.com; Date: Wed, 03 Mar 2010 13:45:23 -0500; Update to the Henry Hum. Much of the hum was magnetic pickup and moving things and better grounding solved that. It was another operator that first said "That's 120 cycle hum". I don't think it was.; /archives//html/Amps/2010-03/msg00068.html (6,823 bytes)
8. Re: [Amps] Did the Henry 2KD Classic have a built in power supply? (score: 1): Author: johndtate@post.com; Date: Sun, 04 Apr 2010 23:27:17 -0400; http://www.pa3ect.eu/Henry%202KD%20classic/Henry%202K%20manual.pdf --Original Message-- From: Hardy Landskov <n7rt@cox.net> To: Roger <sub1@rogerhalstead.com> Cc: amps@contesting.com Sent: Sun, Apr 4; /archives//html/Amps/2010-04/msg00088.html (9,101 bytes)
9. Re: [Amps] [AMPS] 3-500z "glow blue" (score: 1): Author: johndtate@post.com; Date: Wed, 07 Apr 2010 18:37:01 -0400; Donald Chester, K4KYV has mentioned sometimes the blue glow is not due to a tube being gassy, but to impurities... Here is a nice webpage about the blue glow.. http://www.jacmusic.com/html/articles/b; /archives//html/Amps/2010-04/msg00236.html (8,316 bytes)
10. [Amps] Henry 2K4 troubleshooting (score: 1): Author: johndtate@post.com; Date: Mon, 12 Apr 2010 15:19:09 -0400; Remember the Henry Hum thread(s)? Your help on that issue was greatly appreciated. Several people chimed in and the answer ended up being in a poorly designed filament choke. The stock filament choke; /archives//html/Amps/2010-04/msg00433.html (10,888 bytes)
11. Re: [Amps] Henry 2K4 troubleshooting (score: 1): Author: johndtate@post.com; Date: Mon, 12 Apr 2010 18:06:24 -0400; I'm still getting used to replying to all and then taking out the individuals so it only goes to the list.... Anyway, I'm thinking the one tube developed a filament to grid/plate short after being ke; /archives//html/Amps/2010-04/msg00440.html (7,004 bytes)
12. Re: [Amps] For 10 meters only? (score: 1): Author: johndtate@post.com; Date: Mon, 21 Jun 2010 00:17:50 -0400; Maybe the chassis has really straight, square lines. "Linear" amplifier. REPLY: Quoting from the eBay posting: " 16 pill linear amplifier. Class C Bias" Detect anything odd there? :-) 73, Bill W6WRT; /archives//html/Amps/2010-06/msg00191.html (7,062 bytes)
13. Re: [Amps] Chimney (score: 1): Author: johndtate@post.com; Date: Sat, 03 Jul 2010 00:12:45 -0400; My Henry 2K4 has chimneys made by Radnoti Glass -- Arcadia, Calif. They curve inward at the tops. Is this what Henry shipped originally I wonder? They seem to be well made and they do work well. John; /archives//html/Amps/2010-07/msg00041.html (7,296 bytes)
14. Re: [Amps] Check out This Ebay Amplifier system (score: 1): Author: johndtate@post.com; Date: Thu, 08 Jul 2010 15:52:36 -0400; Linoleum??? Shouldn't that be SHAG CARPET? What the???? I could find no Heathkit either. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.; /archives//html/Amps/2010-07/msg00084.html (7,002 bytes)
15. [Amps] Henry 2K4 (score: 1): Author: John <johndtate@post.com>; Date: Tue, 08 Mar 2011 03:56:10 -0500; Greetings Amplifier Aficionados! This is KX5JT. You guys may remember a year ago after acquiring a Henry 2K4 amplifier that I pressed into A.M. service, I had to replace the improperly designed toroi; /archives//html/Amps/2011-03/msg00063.html (7,792 bytes)

Current List: 1 - 15
Page: [1]