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#11
October 14th 04, 01:00 AM
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"dxAce" wrote in message ... Michael wrote: "GeorgeF" wrote in message nk.net... I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com A close friend has an R-5000. He has confirmed that it runs way hotter then his R8b, but not so hot that you cant touch the top of the radio. He keeps his radio on a large counter top and said that his cat likes to sit on top of the radio when its on because its warm... :-) The suggestion to run it on a seperate 12 volt supply is a good one if it has the 12 volt option. I don't recall off hand if that was standard, or an option. I run my Drake R7 here on 12 volts due to having some diodes in the power supply failing in years past due to heat, but even the R7 does not run hot. The R7 hits the trail to Ohio tomorrow for a tune up. (This one has never been sent out by me for a tune up, but it reads just slightly off on the readout.) I'm looking forward to using it a bit more this dx season, and maybe snagging a few of the Indian regionals I don't yet have. What kind of filters do you have in your R7 ???? Michael |
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#12
October 14th 04, 01:05 AM
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Michael wrote: "dxAce" wrote in message ... Michael wrote: "GeorgeF" wrote in message nk.net... I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com A close friend has an R-5000. He has confirmed that it runs way hotter then his R8b, but not so hot that you cant touch the top of the radio. He keeps his radio on a large counter top and said that his cat likes to sit on top of the radio when its on because its warm... :-) The suggestion to run it on a seperate 12 volt supply is a good one if it has the 12 volt option. I don't recall off hand if that was standard, or an option. I run my Drake R7 here on 12 volts due to having some diodes in the power supply failing in years past due to heat, but even the R7 does not run hot. The R7 hits the trail to Ohio tomorrow for a tune up. (This one has never been sent out by me for a tune up, but it reads just slightly off on the readout.) I'm looking forward to using it a bit more this dx season, and maybe snagging a few of the Indian regionals I don't yet have. What kind of filters do you have in your R7 ???? 8, 6, 4, 3 and 2.3 kHz. dxAce Michigan USA |
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#13
October 14th 04, 01:13 AM
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Volker Tonn wrote in message ...
michael agner schrieb: Yep, I've heard this too. Maybe someone here has some mods that would cool it down somewhat... Ask dx'tard how a bath -or at least a shower- works on cooling down... ;-) Has that thing an external voltage connector for 12 volts? If yes, get a good power supply and that's it. While I love Kenwood HF gear, I have noticed that Kenwood really cheaps out on heatsinks. My R2000 has two 7805 regulator ICs that run so hot you can not touch them. I added addtional heatsinking, 2 TO-220 per IC, from above they form an "H", and this lowered the temp by over 40F. My R2000 is operated from an exteranl (Lambda) 12V supply that also charges a gell cell. The stock built in supply puts out almost 15V. Terry |
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#14
October 14th 04, 05:15 AM
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GeorgeF wrote:
I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com George: My R-5000 runs warm, not hot. You can run any R-5000 on 12 volts. You can make the adaptor yourself. E-mail me for details. -- Brian Denley http://home.comcast.net/~b.denley/index.html |
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#15
October 14th 04, 05:33 AM
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George: My R-5000 runs warm, not hot. You can run any R-5000 on 12 volts. You can make the adaptor yourself. E-mail me for details. TNX for the idea of running it from external 12V. The only thing I don't have is the 12V plug which plugs into the Kenwood. Where can one get one? Worse comes to worse I can replace their plug with something I have.... BTW its even warm when not turned on, been like ever since I"ve owned it which as been about 6 years. Excellent radio, preforms almost as well on HF as my new Yaesu FT-847's receive. George - Daytona Beach, FL http://www.MilAirComms.com |
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#16
October 14th 04, 10:29 AM
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= = = dxAce wrote in message
= = = ... Michael wrote: "GeorgeF" wrote in message nk.net... I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com A close friend has an R-5000. He has confirmed that it runs way hotter then his R8b, but not so hot that you cant touch the top of the radio. He keeps his radio on a large counter top and said that his cat likes to sit on top of the radio when its on because its warm... :-) The suggestion to run it on a seperate 12 volt supply is a good one if it has the 12 volt option. I don't recall off hand if that was standard, or an option. DX ACE, The DCK-2 DC Operation Kit is an "Option" for the Kenwood R-5000. The 'kit'has two parts: - Internal Wiring Harness with two Plugs; one Plug to mount on the Radio's Rear Panel for 12 DC Power Input; and the other to plug into a PC Board. - External Wiring Harness with two Plugs; one to plug into the Radios Rear Panel 12 DC Power Input Jack; and the other to plug into the car's Cigarette Lighter. The Kenwood R-5000 does run Warm to Hot when used for a few hours. Kenwood R-5000 "Options" 6 Page PDF File Location "Files Section" Kenwood R-5000 eGroup on YAHOO ! FILES= http://groups.yahoo.com/group/kenwood-r5000/files/ File Name: R-5000_Options_6Pgs.pdf Page #4 is the Installation of the DCK-2 DC Power Cable Kit. Check-Out the "Kenwood R-5000 Communications Receiver" eGroup on YAHOO ! Kenwood-R-5000= http://groups.yahoo.com/group/kenwood-r5000/ ~ RHF .. .. I run my Drake R7 here on 12 volts due to having some diodes in the power supply failing in years past due to heat, but even the R7 does not run hot. The R7 hits the trail to Ohio tomorrow for a tune up. (This one has never been sent out by me for a tune up, but it reads just slightly off on the readout.) I'm looking forward to using it a bit more this dx season, and maybe snagging a few of the Indian regionals I don't yet have. dxAce Michigan USA .. |
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#17
October 14th 04, 11:45 AM
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RHF wrote: = = = dxAce wrote in message = = = ... Michael wrote: "GeorgeF" wrote in message nk.net... I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com A close friend has an R-5000. He has confirmed that it runs way hotter then his R8b, but not so hot that you cant touch the top of the radio. He keeps his radio on a large counter top and said that his cat likes to sit on top of the radio when its on because its warm... :-) The suggestion to run it on a seperate 12 volt supply is a good one if it has the 12 volt option. I don't recall off hand if that was standard, or an option. DX ACE, The DCK-2 DC Operation Kit is an "Option" for the Kenwood R-5000. The 'kit'has two parts: - Internal Wiring Harness with two Plugs; one Plug to mount on the Radio's Rear Panel for 12 DC Power Input; and the other to plug into a PC Board. - External Wiring Harness with two Plugs; one to plug into the Radios Rear Panel 12 DC Power Input Jack; and the other to plug into the car's Cigarette Lighter. The Kenwood R-5000 does run Warm to Hot when used for a few hours. Really? Mine never did and I had it for several years. I guess our definitions of 'hot' do not concur. dxAce Michigan USA |
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#19
October 14th 04, 03:12 PM
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BDK wrote: In article , says... RHF wrote: = = = dxAce wrote in message = = = ... Michael wrote: "GeorgeF" wrote in message nk.net... I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com A close friend has an R-5000. He has confirmed that it runs way hotter then his R8b, but not so hot that you cant touch the top of the radio. He keeps his radio on a large counter top and said that his cat likes to sit on top of the radio when its on because its warm... :-) The suggestion to run it on a seperate 12 volt supply is a good one if it has the 12 volt option. I don't recall off hand if that was standard, or an option. DX ACE, The DCK-2 DC Operation Kit is an "Option" for the Kenwood R-5000. The 'kit'has two parts: - Internal Wiring Harness with two Plugs; one Plug to mount on the Radio's Rear Panel for 12 DC Power Input; and the other to plug into a PC Board. - External Wiring Harness with two Plugs; one to plug into the Radios Rear Panel 12 DC Power Input Jack; and the other to plug into the car's Cigarette Lighter. The Kenwood R-5000 does run Warm to Hot when used for a few hours. Really? Mine never did and I had it for several years. I guess our definitions of 'hot' do not concur. dxAce Michigan USA Well, all I can say is it was unpleasant to touch for very long, and it was the hottest solid state receiver, by far that I have ever had, including my ICOM R7100 that also ran very hot on 117 volts.. Yeah, I've heard that some of the ICOM's indeed run very hot. But I can't figure out why anyone would say that an R-5000 ran so hot that it was unpleasant to touch. I encountered several of them and never noticed that to be the case. Warm yes, hot no. dxAce Michigan USA |
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#20
October 15th 04, 02:09 AM
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In article , says...
BDK wrote: In article , says... RHF wrote: = = = dxAce wrote in message = = = ... Michael wrote: "GeorgeF" wrote in message nk.net... I have an R-5000 which works great. However I'm wondering from others who own or have owned an R-5000 if you're gets hot? After being on for hours mine gets so hot you "almost" can't hold your hand on the top cover. Mine has done this for years and hasn't yet affected the receive performance but just wondering if this normal. My other HF rigs don't get hot (JRC NRD-525, Yaesu FT-847, RadioShack DX-394 or Kenwood TS-520) all of which are one 12-20 hours a day..... George http://www.MilAirComms.com A close friend has an R-5000. He has confirmed that it runs way hotter then his R8b, but not so hot that you cant touch the top of the radio. He keeps his radio on a large counter top and said that his cat likes to sit on top of the radio when its on because its warm... :-) The suggestion to run it on a seperate 12 volt supply is a good one if it has the 12 volt option. I don't recall off hand if that was standard, or an option. DX ACE, The DCK-2 DC Operation Kit is an "Option" for the Kenwood R-5000. The 'kit'has two parts: - Internal Wiring Harness with two Plugs; one Plug to mount on the Radio's Rear Panel for 12 DC Power Input; and the other to plug into a PC Board. - External Wiring Harness with two Plugs; one to plug into the Radios Rear Panel 12 DC Power Input Jack; and the other to plug into the car's Cigarette Lighter. The Kenwood R-5000 does run Warm to Hot when used for a few hours. Really? Mine never did and I had it for several years. I guess our definitions of 'hot' do not concur. dxAce Michigan USA Well, all I can say is it was unpleasant to touch for very long, and it was the hottest solid state receiver, by far that I have ever had, including my ICOM R7100 that also ran very hot on 117 volts.. Yeah, I've heard that some of the ICOM's indeed run very hot. But I can't figure out why anyone would say that an R-5000 ran so hot that it was unpleasant to touch. I encountered several of them and never noticed that to be the case. Warm yes, hot no. dxAce Michigan USA Of the three I have played with, mine and two friend's R5000s, all ran equally HOT. Hot enough to be of concern over time as the inside temp was also much warmer than normal. The very first mod I ever saw for it was moving a couple of regulators to the back panel and adding a couple of big heatsinks to make the inside temp drop from (I think, it was a long time ago), from 130 deg F+, to less than 100 deg. I just put mine on 12V, it was already set up for it when I bought it used. If I hadn't had it set up for 12 volts already, I would have tried to find the kit to do it, or done the mod. I'm amazed the heat didn't kill them within a year or so. You open the case and touch those regs and they were hot enough to burn you. I was offered 40 bucks more than I paid for it a couple years after I got it, and off it went. BDK |
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