Re: [AMRadio] THE VIKING II AND FRIED HAM
Hello, The Antenna relay socket is a simple crystal socket in my VKII's. I just took a useless metal xtal, unsoldered the shell and made an opening for a grommet and zip cord to go to the relay. Then resoldered and injected silicone glue past the cord. One of those things you do when it is needed. But when I get around to rebuilding the VK's will place a small 24 volt transformer or a relay inside and put pin jack sockets or whatever connector will mount in the holes without modification. Definitely a dangerous spot for hot AC line voltage!! Can't imagine what EFJ was thinking there! A simple AC socket like on stereo amps would have been fine. Of course the line cord must be 3 wire polarized and properly fused. 73's Bill KB3DKS/1 __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] THE VIKING II AND FRIED HAM
Not sure about the Viking II, but in the Valiant, the internal fuse is only in the primary of the HV xfmr. The line plug fuses protect evertything else. I replaced the single internal fuseholder with a double one and used the second holder for a single fuse in the hot side of the line only and replaced the line cord with a 3 conductor and 3 prong prang. Dave, VE1ADH - Original Message From: [EMAIL PROTECTED] [EMAIL PROTECTED] To: amradio@mailman.qth.net; [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 11:41:07 AM Subject: [AMRadio] THE VIKING II AND FRIED HAM Hi Ed, You are correct and I noticed that after I posted. In the Viking II, there is an additional fuse in the primary circuit which is mounted in a holder on the chassis. Not so in the Ranger where the fuses are in that infamous fused plug. My original V II came with the fused plug and the internal fuse. The only possible reason I can see for this was to protect the antenna relay socket regardless of which way the line cord was plugged into the wall outlet. Seems like the engineers would have just put the hot side of the socket on the other side of the fuse and one problem would have been solved. Thanks for your comments, 73, John, W4AWM ** AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] THE VIKING II AND FRIED HAM
The internal fuse in the Viking II is in line with the low and high voltage transformer primaries and protects both. As stated before, there is no prorection for the antenna relay socket unless the original fused line plug is used. This is not a good idea and it should be replaced as you said, with internal fuses. If wired correctly, only one additional fuse would be needed to protect both sides of the line and the lead to the relay socket should be moved ahead of the fuse to protect that outlet. 73, John, W4AWM I replaced the single internal fuseholder with a double one and used the second holder for a single fuse in the hot side of the line only and replaced the line cord with a 3 conductor and 3 prong prang. ** See what's free at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] THE VIKING II AND FRIED HAM ++CORRECTION++
In a message dated 3/28/2007 17:52:50 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: the lead to the relay socket should be moved ahead of the fuse to protect that outlet. CORRECTION: Sorry, that should read after the fuse! 73, John, W4AWM ** See what's free at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] THE VIKING II AND FRIED HAM
It is a good idea to use a separate fuse for the high voltage and the low voltage. With one fuse only you can have a short on the low voltage and it will cook the low voltage transformer and never blow the fuse. BTDT. 73 Gary K4FMX -Original Message- From: [EMAIL PROTECTED] [mailto:amradio- [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 5:52 PM To: [EMAIL PROTECTED] Cc: amradio@mailman.qth.net Subject: Re: [AMRadio] THE VIKING II AND FRIED HAM The internal fuse in the Viking II is in line with the low and high voltage transformer primaries and protects both. As stated before, there is no prorection for the antenna relay socket unless the original fused line plug is used. This is not a good idea and it should be replaced as you said, with internal fuses. If wired correctly, only one additional fuse would be needed to protect both sides of the line and the lead to the relay socket should be moved ahead of the fuse to protect that outlet. 73, John, W4AWM I replaced the single internal fuseholder with a double one and used the second holder for a single fuse in the hot side of the line only and replaced the line cord with a 3 conductor and 3 prong prang. ** See what's free at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] THE VIKING II AND FRIED HAM
And, if you do cook that low voltage tranny, shoot me an email. I have two new rewinds setting on the shelf, ready to bolt in. Regards, Gary...WZ1M - Original Message - From: Gary Schafer [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net; [EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 5:48 PM Subject: RE: [AMRadio] THE VIKING II AND FRIED HAM It is a good idea to use a separate fuse for the high voltage and the low voltage. With one fuse only you can have a short on the low voltage and it will cook the low voltage transformer and never blow the fuse. BTDT. 73 Gary K4FMX -Original Message- From: [EMAIL PROTECTED] [mailto:amradio- [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 5:52 PM To: [EMAIL PROTECTED] Cc: amradio@mailman.qth.net Subject: Re: [AMRadio] THE VIKING II AND FRIED HAM The internal fuse in the Viking II is in line with the low and high voltage transformer primaries and protects both. As stated before, there is no prorection for the antenna relay socket unless the original fused line plug is used. This is not a good idea and it should be replaced as you said, with internal fuses. If wired correctly, only one additional fuse would be needed to protect both sides of the line and the lead to the relay socket should be moved ahead of the fuse to protect that outlet. 73, John, W4AWM I replaced the single internal fuseholder with a double one and used the second holder for a single fuse in the hot side of the line only and replaced the line cord with a 3 conductor and 3 prong prang. ** See what's free at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.20/737 - Release Date: 3/28/2007 4:23 PM __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] THE VIKING II AND FRIED HAM
There has been a lot of talk tonight about a matching connector for the Viking II rear panel antenna changeover relay socket. The Ranger has a similar socket. In the case of the Viking II, one side of this socket is connected directly to one side of the line cord. If the external double fused plug has been removed and replaced with a standard 2 wire AC plug, there is no fuse between one side of the connector and the line. In the Ranger, the same situation exists. To prevent disaster, the first thing that users of these transmitters should to is remove the fused plug and replace the line cord with a properly wired 3 conductor line cord set. The antenna relay connector should be wired to the neutral side if the new line cord. The original matching connector is a dangerous thing. It is all but impossible to get shrink tubing to stick to the pins and electrical tape around the whole connector will eventually dry up and come off. I have no connection with Glen, but his connector is a very safe way to access the antenna relay socket on both rigs. Many hams, myself included, either mount the antenna changeover relay on the rear of the Viking or on the receiver rear panel. Some others simply use a double male SO-239 connector. My point here is that the terminals on the relay coil need to be insulated, too. Back in the 50s when I built my Viking II, I remember trying to get tape to stick to the supplied plug, but I don't recall ever insulating the terminals on the relay coil. How I kept from being fried with this arrangement is a wonder to me. I guess being a fresh new ham, I never thought too much about it. All the cautions back in those days from my Elmer were to be wary of HV. I guess nobody gave line voltage a second thought and if they did, it was not talked about very much. Remember, it is not the voltage that kills, it's the current. An electrical current flowing through the body is looking to find a ground. When it does the body reacts by contracting muscle tissue. When this happens and you happen to be holding on to something, you can't let go. If nobody is there to stop the flow of current, ventricular fibrillation occurs when electrical signals from the brain to the heart are interrupted. The result is that the heart begins to beat in an irregular rhythm and is unable to pump blood properly. Unless the victim received proper and immediate first aid, death follows shortly. You have heard the phrase from old timers: Keep one hand in your pocket while working around voltage sources. The idea here is to keep you from having current flow across your chest and through your heart. I am not a doctor, nor a medical practioner of any sort, but many first aid courses, electrical safety seminars and a few nasty bites have taught me to respect all sources of voltage be they LV, HV Line voltage or even batteries. Switch to safety and install 3 wire cord sets on all your boatanchors. Being able to probe around in much of the solid state gear has caused many to become complacent about shock. Don't let your guard down. 73 and stay safe, John, W4AWM ** AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] THE VIKING II AND FRIED HAM
When I was in the Navy, I was taught that the most dangerous voltage is 120 VAC. Because we take it for granted and don't give it the respect that it truly deserves. Mod-U-Lator, Mike(y) W3SLK --- There has been a lot of talk tonight about a matching connector for the Viking II rear panel antenna changeover relay socket. The Ranger has a similar socket. In the case of the Viking II, one side of this socket is connected directly to one side of the line cord. If the external double fused plug has been removed and replaced with a standard 2 wire AC plug, there is no fuse between one side of the connector and the line. In the Ranger, the same situation exists. To prevent disaster, the first thing that users of these transmitters should to is remove the fused plug and replace the line cord with a properly wired 3 conductor line cord set. The antenna relay connector should be wired to the neutral side if the new line cord. The original matching connector is a dangerous thing. It is all but impossible to get shrink tubing to stick to the pins and electrical tape around the whole connector will eventually dry up and come off. I have no connection with Glen, but his connector is a very safe way to access the antenna relay socket on both rigs. Many hams, myself included, either mount the antenna changeover relay on the rear of the Viking or on the receiver rear panel. Some others simply use a double male SO-239 connector. My point here is that the terminals on the relay coil need to be insulated, too. Back in the 50s when I built my Viking II, I remember trying to get tape to stick to the supplied plug, but I don't recall ever insulating the terminals on the relay coil. How I kept from being fried with this arrangement is a wonder to me. I guess being a fresh new ham, I never thought too much about it. All the cautions back in those days from my Elmer were to be wary of HV. I guess nobody gave line voltage a second thought and if they did, it was not talked about very much. Remember, it is not the voltage that kills, it's the current. An electrical current flowing through the body is looking to find a ground. When it does the body reacts by contracting muscle tissue. When this happens and you happen to be holding on to something, you can't let go. If nobody is there to stop the flow of current, ventricular fibrillation occurs when electrical signals from the brain to the heart are interrupted. The result is that the heart begins to beat in an irregular rhythm and is unable to pump blood properly. Unless the victim received proper and immediate first aid, death follows shortly. You have heard the phrase from old timers: Keep one hand in your pocket while working around voltage sources. The idea here is to keep you from having current flow across your chest and through your heart. I am not a doctor, nor a medical practioner of any sort, but many first aid courses, electrical safety seminars and a few nasty bites have taught me to respect all sources of voltage be they LV, HV Line voltage or even batteries. Switch to safety and install 3 wire cord sets on all your boatanchors. Being able to probe around in much of the solid state gear has caused many to become complacent about shock. Don't let your guard down. 73 and stay safe, John, W4AWM __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
