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write your own review of the Astron RS-70M.
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VE7IG
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Rating: 5/5
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Aug 19, 2009 05:55
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A very good power supply.
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Time owned: more than 12 months
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I've been using this as my main station power supply for several years. It is left on most of the time with no problems--- the load current is fairly low. I do run two RS20A's in series with it to give me ~44 volts to run a 400 watt Down East Microwave 6 metre amp but at that voltage the current is still low. The heavy beast just sits there and runs! These Astron power supplies are great and there is NO receiver noise that you will experience with many light weight switching supplies.
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W6RTW
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Rating: 5/5
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May 21, 2009 19:58
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Power to Spare
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Time owned: more than 12 months
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I got this power supply to drive an SO2R station consisting of an Icom 756 Pro 2 and a Pro 3. I have never had a problem with the supply, both power-wise and smell-wise. LOL This supply just sits in a corner and I have never turned it off with the exception of a few power failures here in the city. Voltage and regulation are solid and unchanging. It is also quiet, more so than even the Icom PS125 switching supply. It certainly is a heavy beast. I don't need to worry about it moving around in an earthquake.
Bob - W6RTW
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VE6CPP
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Rating: 5/5
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Sep 17, 2008 09:16
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A Lotta Punch
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Time owned: 0 to 3 months
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I have a'New to Me' RS-70M.. using it to run WSJT EME at 100% Duty Cycle to Power a 300W Mirage.. Shows it draws anywhere from 58 to 62A on TX.. My only concern.. the Fan dont start up.. seems to run a Lil Hot! So I added an external fan to it..Hope it Helps! Anyone know 'How Hot' these should get before the fan kicks in?
Jerry VE6CPP
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W4KVW
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Rating: 5/5
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Jun 25, 2008 10:08
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GREAT SUPPLY
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Time owned: more than 12 months
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I have had the RS-70M for about 5 years with ZERO issues.I bought it from another local ham who got out of ham radio & he used it for about 6 years before me with ZERO issues.GREAT supply that runs EVERYTHING on my desk with PLENTY of room to spare.I sold my ASTRON RS-50M to buy the RS-70M & had ZERO issues with it as well.In the 14 plus years I have been a ham I have NEVER had an issue with an ASTRON power supply! }:>)
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W9VNE
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Rating: 5/5
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Mar 2, 2008 08:24
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works as advertised
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Time owned: more than 12 months
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I read all of the prior reviews . . . . almost everyone seems to agree that it works as advertised . . . those who down rate it and who have problems are in the minority . . . i have the 220 volt version . . . i have 2 of them and they are run in parallel to power a solid state amp (Hercules II). I can get 70 amps out of either but with 2 in parallel i do not push either one . . . I also have a 20 and 50 amp versions which i have owned for years (decades) with no real problems to report .. i have been a ham for 55 years so i have some experience with ham gear
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W4HEY
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Rating: 5/5
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Dec 5, 2006 06:31
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Odor-Free!
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Time owned: 0 to 3 months
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I have been running my RS-70M for a week now, powering 2 solid-state amps with no problems whatsoever. Apparently they worked out the odor issue previously mentioned and it seems that they added inrush protection as well -- no thud at start-up. Nice power supply, albeit heavy as [and built like] a tank!
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WV4I
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Rating: 5/5
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Aug 13, 2006 06:16
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Works FB.....
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Time owned: 0 to 3 months
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Purchased new. Works FB right out of box. Best price I could find was $280 plus $15 shipping. Ship weight is upwards of 50 pounds. Shows approx 50a running my also new TE systems 1452G amp, 15in/400out. Exciter is on separate power supply. So far, no smells or popped breakers, running on 120vac, 15a house cicuit, and notice unit is fused at 12a on ac input side. Included schematic dated 1997 does not show any inrush current protection. You'll need #6 gauge wire and lugs for unit's 1/4" terminals (lugs were included with mine). Only other comment is that power out terminals are both exposed, and safety would be enhanced with some type of protective covering. I've had other Astron amps and suspect this one also will last a long time.
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W5WVO
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Rating: 5/5
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May 27, 2006 19:56
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Big iron!
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Time owned: 3 to 6 months
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This is my kind of power supply. It's a real brute, and it supplies my TS-2000, TE Systems 400W 6M linear amplifier, and assorted low-power station accessories easily. The output voltage doesn't even flicker under key-down full carrier conditions.
If you need this kind of current supply capability, this is the power supply for you. Very highly recommended.
One note: If you buy this unit new, you will notice after it's been on for a few hours that it, um... stinks. :-) This is the excess thermal compound on the heat sinks burning off. It is a temporary situation. Keep it turned on 24/7 for several weeks and the smell will gradually subside. Mine has been in service for about six months and there is no smell left at all.
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W2MSK
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Rating: 4/5
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Apr 16, 2006 07:43
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Workhorse
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Time owned: 6 to 12 months
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I've used various Astron supplies over the years and they are very reliable and quality made. The RS-70M is used to power a high output VHF brick amp and does a good job. The brick requires about 35-40 amps and the supply provides this power, albeit with heat and the fan coming on during sustained constant carrier operation. The "smell" referred to in an earlier review is certainly noticeable however it disipates after several months of burn-in. Just a hint of the odor after 3-4 months use. I expect it to completely disappear. The factory states this odor is due to an inrush circuit component recently installed in the later models. Recommended.
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9K2HN
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Rating: 5/5
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Mar 12, 2006 11:20
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I like mine very MUCH!! *220V*
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Time owned: more than 12 months
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I ordered mine back on 2003 from USA all the way to Kuwait and it cost me so much for the shipping charges, but after all it worth every cent i spent on it. I ordered the 220v and took a week to build it and ship it. I realy enjoy seeing it ON all the time since i bought it. I had to replace the fuse once only due to my mistake. I just ordered another one for my second qth.
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