- 1. [Amps] RF Chokes for the SB-220 (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Fri, 10 Dec 2004 21:03:48 -0800
- I am trying to rebuild a SB-220 amp. I found what appears to be a resistor in place of the RF choke on the grid of both tubes (RFC-4 and 5, 1 mh pi-wound). The color coding is yellow-violet-black-red
- /archives//html/Amps/2004-12/msg00172.html (6,610 bytes)
- 2. Re: [Amps] 50 or 60 Hz, a problem? (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Mon, 10 Jan 2005 13:23:39 -0800
- My SB-220 says 50/60 cycle in the introduction. SB-221 manual also says 50/60. Bob W6VY -- Original Message -- From: "Will Matney" <craxd1@ezwv.com> To: <amps@contesting.com> Sent: Monday, January 10
- /archives//html/Amps/2005-01/msg00188.html (8,829 bytes)
- 3. Re: [Amps] sb-220 power switch (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Sat, 22 Jan 2005 11:01:03 -0800
- Harbach has been closed since Oct 23rd and is closed indefinitely. He normally does not carry the power switches - just the bandswitch wafers. Bob W6VY -- Original Message -- From: "Gary Smith" <wa6f
- /archives//html/Amps/2005-01/msg00459.html (8,310 bytes)
- 4. Re: [Amps] Re: 0.01 @ 2 kv caps. (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Mon, 7 Feb 2005 12:03:51 -0800
- Radio Shack no longer carries them. Some stores may have some left. Bob W6VY -- Original Message -- From: "Roy Koeppe" <royanjoy@ncn.net> To: "Amps Reflector" <amps@contesting.com> Sent: Monday, Febr
- /archives//html/Amps/2005-02/msg00248.html (7,321 bytes)
- 5. Re: [Amps] SB-220 Bandswitches (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Fri, 25 Feb 2005 08:41:02 -0800
- Harbach shut down in October because he was behind on orders. He was flooded in January and the website says he is closed indefinitely but will re-open. I have seen a couple of emails on various refl
- /archives//html/Amps/2005-02/msg00807.html (8,265 bytes)
- 6. Re: [Amps] OT: RF Parts still in business? (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Wed, 02 Mar 2005 17:11:12 -0800
- "My parcel was insured via EMS" Do we have the full story? This seems to indicate it was sent and you are having delivery problems. I have had no problems getting things delivered but I am pretty clo
- /archives//html/Amps/2005-03/msg00022.html (7,654 bytes)
- 7. [Amps] Tube Identification (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Tue, 04 Oct 2005 17:59:46 -0700
- Can anyone help me identify a couple of tubes. They look like 4CX250B's. They were made by Eimac for IFI and the IFI number is M400. The only other markings are what appears to be the date code of 90
- /archives//html/Amps/2005-10/msg00120.html (6,589 bytes)
- 8. [Amps] Peter Dahl Transformer in a SB-220 (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Sat, 08 Oct 2005 19:14:39 -0700
- Has anyone replaced the original HV transformer in a SB-220 with a Peter Dahl transformer? There are 3 listed on his website for the SB220,SB221 and HL2200 with ratings of 1.0 or 1.3 amps. The physic
- /archives//html/Amps/2005-10/msg00190.html (7,363 bytes)
- 9. [Amps] T500M (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Wed, 19 Oct 2005 13:40:30 -0700
- The TWE T500M is a mobile 500 watt amplifier identical to the Magnus Metron MA-1000. The manual is available from W7FG Manuals. Bo W6VY -- All Outgoing Messages Scanned by Norton Anti Virus _________
- /archives//html/Amps/2005-10/msg00471.html (6,756 bytes)
- 10. Re: [Amps] RE : DIN stands for....? (score: 1)
- Author: "Robert Dorchuck W6VY" <w6vy@verizon.net>
- Date: Mon, 27 Feb 2006 08:01:11 -0800
- The band data uses a special 8 pin DIN plug - spacing is different than the standard. The arc is 262 degrees. They are available at: http://users.erols.com/rfc/dinconn.htm It is the DB8/262 - it says
- /archives//html/Amps/2006-02/msg00612.html (11,173 bytes)
- 11. Re: [Amps] WTB RJ1A vacuum relay (score: 1)
- Author: "Robert Dorchuck" <w6vy@verizon.net>
- Date: Sun, 14 Nov 2010 10:31:39 -0800
- There is a new GH-1 from Henry Radio on eBay right now item# 390261842119 - $49.95. They are 77.00 from Gigavac (GH-1-Ham). Bob W6VY _______________________________________________ Amps mailing list
- /archives//html/Amps/2010-11/msg00217.html (8,747 bytes)
- 12. Re: [Amps] Why no 28 MHz (score: 1)
- Author: "Robert Dorchuck" <w6vy@verizon.net>
- Date: Tue, 25 Jan 2011 19:35:04 -0800
- Ameritron instructions for adding 10 meters to the AL-1500 require cutting one wire. Worked fine on mine. No change of teh RF choke is required. Bob W6VY _____________________________________________
- /archives//html/Amps/2011-01/msg00295.html (10,765 bytes)
- 13. Re: [Amps] WARNING! W4RT (score: 1)
- Author: "Robert Dorchuck" <w6vy@verizon.net>
- Date: Thu, 14 Apr 2011 07:43:47 -0700
- What does this have to do with eBay? Bob W6VY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
- /archives//html/Amps/2011-04/msg00409.html (9,368 bytes)
- 14. Re: [Amps] DIODE PIV Confusion (score: 1)
- Author: "Robert Dorchuck" <w6vy@verizon.net>
- Date: Wed, 29 Jun 2011 11:38:30 -0700
- Search for 6A10 at Mouser and you will find both 100 and 1000 volt ratings. Bob W6VY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/
- /archives//html/Amps/2011-06/msg00327.html (10,959 bytes)
- 15. Re: [Amps] DIODE PIV Confusion (score: 1)
- Author: "Robert Dorchuck" <w6vy@verizon.net>
- Date: Wed, 29 Jun 2011 14:33:31 -0700
- And if you look at the datsheets from Taiwan Semiconductor the 6A10 is 100 PIV and the 6A100 is 1000PIV. Same as listed in the Mouser catalog. Guess it pays to look close. Bob W6VY __________________
- /archives//html/Amps/2011-06/msg00331.html (9,220 bytes)
- 16. Re: [Amps] Alpha Input SWR (score: 1)
- Author: Robert Dorchuck <w6vy@verizon.net>
- Date: Fri, 09 Jan 2015 19:32:36 -0800
- Strange. My 8410 has an input SWR of less than 1.5, 36 watts in for 1500 out on 12 meters. Transceiver is a TS-990. Have you contacted Alpha? Bob W6VY What is bad about SWR <2? 73 Peter --Original Me
- /archives//html/Amps/2015-01/msg00013.html (12,049 bytes)
- 17. Re: [Amps] Fan/Filter (score: 1)
- Author: Robert Dorchuck <w6vy@verizon.net>
- Date: Sun, 25 Jan 2015 17:47:18 -0800
- The Alpha website shows it as 71 CFM. Same fan they offer for the 8410 but I used a quieter 61 CFM EBM Papst model 4800ZW fan available from Allied (and other sources). Bob W6VY thanks 73 Dwight NS9I
- /archives//html/Amps/2015-01/msg00287.html (6,586 bytes)
- 18. Re: [Amps] Ameritron Availability (score: 1)
- Author: Robert Dorchuck <w6vy@verizon.net>
- Date: Wed, 25 Feb 2015 10:12:40 -0800
- DX Engineering has shown them in stock for the last month or so and AES shows them in stock at Milwaukee, both at 2995. If someone wants one they are available. Bob W6VY _____________________________
- /archives//html/Amps/2015-02/msg00136.html (7,665 bytes)
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