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References: [ +from:ad5th@direcway.com: 23 ]

Total 23 documents matching your query.

1. Re: Re[2]: [Amps] ok ONE more time <g> Ameritron 811H (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Mon, 03 Jan 2005 12:26:32 -0600
Sounds like good troubleshooting technique to me. Maybe you can evaluate the tube further to isolate what is wrong with it. Charlie Ham Radio - AD5TH www.ad5th.com Live Blues Music www.492acousticblu
/archives//html/Amps/2005-01/msg00041.html (12,508 bytes)

2. Re: [Amps] DX Eng antenna switch (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Wed, 05 Jan 2005 23:29:07 -0600
I have not used that switch but have purchased antenna hardware (radial plate / tilt over mount / radials / etc) from DX Engineering and was very impressed with the quality and attention to detail. H
/archives//html/Amps/2005-01/msg00065.html (7,861 bytes)

3. [Amps] AL-80B mods? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 06 Jan 2005 10:28:43 -0600
My new AL-80B will be here in a few days and I wonder if like the 811H there are some "must have" mods? Anything from Measures on this amp? TY Charlie Ham Radio - AD5TH www.ad5th.com Live Blues Music
/archives//html/Amps/2005-01/msg00071.html (6,301 bytes)

4. Re: [Amps] AL-80B mods? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 06 Jan 2005 11:13:30 -0600
AFAIK the parasitic suppression mod and the current in rush mod.... Charlie Ham Radio - AD5TH www.ad5th.com Live Blues Music www.492acousticblues.com -- Original Message -- From: "Dan" <dpipes@earthl
/archives//html/Amps/2005-01/msg00074.html (8,615 bytes)

5. Re: Re[2]: [Amps] AL-80B mods? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 06 Jan 2005 11:58:55 -0600
Yes softening startup current in rush helps them all. The one and only amp I ever built (single 3-500z w/3300v - 1 amp supply) was tuff on 120 line voltage and would dim the house lights at turn on.
/archives//html/Amps/2005-01/msg00077.html (10,474 bytes)

6. Re: [Amps] AL-80B mods? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 06 Jan 2005 14:13:51 -0600
My remark was relating to the OP's question concerning the 811H and not the AL80B Charlie Ham Radio - AD5TH www.ad5th.com Live Blues Music www.492acousticblues.com -- Original Message -- From: "Scott
/archives//html/Amps/2005-01/msg00083.html (9,354 bytes)

7. Re: [BULK] - Re: [Amps] AL-80B mods? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 06 Jan 2005 18:16:50 -0600
Thanks for that insight Vic and Steve... ...I can't wait to load that baby up on 75M Charlie Ham Radio - AD5TH www.ad5th.com Live Blues Music www.492acousticblues.com -- Original Message -- From: "Vi
/archives//html/Amps/2005-01/msg00090.html (8,654 bytes)

8. [Amps] AL-80B 15/17M tuned input high vswr (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Tue, 11 Jan 2005 00:05:47 -0600
My AL-80B arrived today and the 15/17M tuned input has a high vswr around 10:1. The other bands inputs have low vswr and this data is with the tuner in the 746 Pro turned off. The manual says nothing
/archives//html/Amps/2005-01/msg00196.html (6,936 bytes)

9. [Amps] AL-80B "Optional" Grid Protection circuitry - identify? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Mon, 17 Jan 2005 18:48:38 -0600
The AL-80B manual and web site discuss an "optional' grid protection board I believe they call it. I am the new owner of a used AL-80B and would like to know how I can check if this "optional ' grid
/archives//html/Amps/2005-01/msg00330.html (7,060 bytes)

10. [Amps] AL-80B tuned input swr problem was bad 3-500Z (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 20 Jan 2005 22:28:19 -0600
Took my AL-80B to Starkville,MS so Rob and Mike at Ameritron could solve e the high vswr on the 15 and 20M input circuits. The amp was also a tad low power at 650 cw. Once the 3-500Z got replaced the
/archives//html/Amps/2005-01/msg00410.html (6,982 bytes)

11. Re: [Amps] 3-500Z characteristic curves (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Sat, 22 Jan 2005 08:56:50 -0600
View individual data sheets and save the ones you want or download a single zip file that contains all 8 sheets. Tech specs, application notes, and a dual 3-500Z amp schematic are included. 1. http:/
/archives//html/Amps/2005-01/msg00449.html (7,796 bytes)

12. Re: [Amps] What is it called? (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Sat, 22 Jan 2005 11:10:13 -0600
Is it maybe called "phenolic" Charlie Ham Radio - AD5TH www.ad5th.com Live Blues Music www.492acousticblues.com -- Original Message -- From: "Harold B. Mandel" <ka1xo@juno.com> To: <amps@contesting.c
/archives//html/Amps/2005-01/msg00455.html (8,005 bytes)

13. Re: [Amps] AL-811: Tuning, Setting ALC, Operating (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Sat, 29 Jan 2005 11:38:33 -0600
Using ICOM 746 Pro and AL-80B here but did have an 811H at my last station. You do not need the interface for keying the amp. The alc has a setting adj on the back of the amp. Follow the manual and u
/archives//html/Amps/2005-01/msg00578.html (8,664 bytes)

14. [Amps] Icom 746 Pro / AL-80B relay keying concern (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Sat, 29 Jan 2005 22:32:55 -0600
Using an ICOM 746 Pro with an AL-80B amp. According to their respective manuals the AL-80B sources +12vdc at 100mA and the 746Pro can sink a max of +16vdc at 500mA. QUESTION: Do I need an amplifier k
/archives//html/Amps/2005-01/msg00604.html (7,222 bytes)

15. Re: [Amps] Why price difference (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 03 Feb 2005 11:32:56 -0600
Pleased with my Ameritron AL-80B which easily delivers 1KW PEP. Watts is watts....brand name in that regard is irrelevant. Buy the Ameritron and stick the $2000+ savings into the antenna system...the
/archives//html/Amps/2005-02/msg00035.html (9,484 bytes)

16. Re: [Amps] Why price difference (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Thu, 03 Feb 2005 12:36:40 -0600
I had my AL-80B serviced under warranty (soft tube) at Ameritorn ( I live 70 miles from Starkville and sat next to Rob the tech during the entire service procedure) and it checked out fine for linear
/archives//html/Amps/2005-02/msg00046.html (10,244 bytes)

17. Re: [Amps] Used AL1200 Input VSWR Problems (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Sat, 12 Feb 2005 20:25:20 -0600
I recently purchased a used AL-80B and had similar trouble on 20M and 15M. The input vswr was high (over 4 to 1) and would not respond to tuning the respective input tanks. I carted it up to Starkvil
/archives//html/Amps/2005-02/msg00451.html (7,697 bytes)

18. [Amps] Ameritron ARB-704 - Photos and Schematic (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Mon, 14 Feb 2005 14:50:43 -0600
I installed this key line buffer today and photographed it inside and out. I scanned the schematic (which has component values) and posted everything on the following web page. Images and schematic a
/archives//html/Amps/2005-02/msg00496.html (6,922 bytes)

19. Re: [Amps] Ameritron ARB-704 - Photos and Schematic (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Mon, 14 Feb 2005 19:40:46 -0600
ICOM support never answered my email but when I called them up they definitely said to use a key line buffer or expect a failure. I do not know that the ARB-704 is any better than the buffer you alre
/archives//html/Amps/2005-02/msg00506.html (10,280 bytes)

20. Re: Re[2]: [Amps] Ameritron ARB-704 - Photos and Schematic (score: 1)
Author: Charlie <ad5th@direcway.com>
Date: Mon, 14 Feb 2005 21:31:34 -0600
That is really interesting since the Icom tech I spoke to was adamant about a key line buffer. Even when I told him the AL-80B sources only +12vdc at 100mA he expressly said I needed one or could exp
/archives//html/Amps/2005-02/msg00511.html (12,696 bytes)

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