- 1. [Amps] Harris RF-353 - AM7224/URC (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Sun, 01 Jul 2007 08:09:24 +0200
- Anybody keen of Harris RF-353 - AM7224/URC? I just bought this amplifier which I want to use with my Ten-Tec Orion radio. It is also planned to evaluate the automatic band switching and tunning. From
- /archives//html/Amps/2007-07/msg00002.html (7,298 bytes)
- 2. Re: [Amps] Jennings and Kilovac vacuum relays for sale (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Sun, 08 Jul 2007 10:33:27 +0200
- I am in a strong need of a vac relay, also for an input relay suitable for 100W switching. I will be very interested on your experience with some distributors (the quality of relays they offering). I
- /archives//html/Amps/2007-07/msg00084.html (8,664 bytes)
- 3. Re: [Amps] Alpha 76 PI-EL modification for WARC bands (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Tue, 18 Sep 2007 22:13:59 +0200
- I would recommend a home made choke wound on a teflon former with a length of ferite rod inside. It is quite easy to obtain some 500 microhenries of inductance with resonance around 700 kHz (really,
- /archives//html/Amps/2007-09/msg00208.html (10,293 bytes)
- 4. Re: [Amps] amp schematic drafting? (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Sat, 08 Mar 2008 04:29:19 +0100
- Paul, you can try Kicad. It is free and it is also a complete suite for PCB design in Orcad style. There are versions for Linux and Windows (I'm using the Linux one). Many libraries and worldwide sup
- /archives//html/Amps/2008-03/msg00072.html (8,509 bytes)
- 5. [Amps] Excessive grid current - AL811HXCE (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Sun, 18 May 2008 14:09:16 +0200
- A friend of mine has an AL811HXCE which started to behave wild. After switching on, the amp works like a champ but after a warm up period the grid current goes from normal 100-150 mA to that level wh
- /archives//html/Amps/2008-05/msg00117.html (8,693 bytes)
- 6. Re: [Amps] **TROJAN ALERT** More pictures of solid state amp project posted (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Wed, 02 Jul 2008 16:59:29 +0200
- no problem at all, browsing thru the nice pics, however in Linux :-) 73, Martin, OK1RR David G4FTC napsal(a): _______________________________________________ Amps mailing list Amps@contesting.com htt
- /archives//html/Amps/2008-07/msg00015.html (9,161 bytes)
- 7. Re: [Amps] **TROJAN ALERT** More pictures... (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Fri, 04 Jul 2008 19:49:39 +0200
- For those who wants the pictures of the EB-104 construction I prepared a PDF guide from the pictures grabbed out from the faulty site. Download here: http://www.ok1rr.com/download.php?view.167 I have
- /archives//html/Amps/2008-07/msg00035.html (9,522 bytes)
- 8. [Amps] Gamma Project - pictures (score: 1)
- Author: Martin Kratoska <martin@ok1rr.com>
- Date: Sat, 05 Jul 2008 21:21:48 +0200
- All pictures (ie. EB-104 Amp Construction, Cooling System, Input Attenuator and Output Diplexer Filters) are now converted to PDF files and available for download at from site: http://www.ok1rr.com/d
- /archives//html/Amps/2008-07/msg00046.html (7,958 bytes)
- 9. [Amps] Trade 3CX800A7 for 8877/3CX1500A7 (score: 1)
- Author: Martin <martin@ok1rr.com>
- Date: Wed, 02 Sep 2009 22:18:17 +0200
- Trade 2 ea 3CX800A7 for 2 ea 8877/3CX1500A7. My 3XC800A7 have date code 8711 and can be a matched pair (no chance to test it). Known good, in original boxes, with passports and documents. Also two co
- /archives//html/Amps/2009-09/msg00020.html (6,887 bytes)
- 10. Re: [Amps] filament choke questions (score: 1)
- Author: Martin <martin@ok1rr.com>
- Date: Fri, 09 Oct 2009 15:33:40 +0200
- The Harris AM7224/URC (RF-353) employs the 8877 also without any filament choke. Works. 73 Martin, OK1RR Carl napsal(a): _______________________________________________ Amps mailing list Amps@contest
- /archives//html/Amps/2009-10/msg00151.html (10,725 bytes)
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