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Reviews Categories | Amplifiers: RF Power - HF & HF+6M | QRO HF-1000 Help

Reviews Summary for QRO HF-1000
Reviews: 3 Average rating: 3.7/5 MSRP: $$1695 with QSK option
Description: 160-10mtrs HF amp with a single 3-500Z, 1kw SSB/800 watts cw output, step start HD supply with Peter Hahl xfmr, full metering,tuned input, vacum relay qsk.
Product is in production.
More info: http://
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IK4CIE Rating: 1/5 Jan 14, 2004 17:07 Send this review to a friend
may be better  Time owned: more than 12 months
Purchased in 1997 and used for 6 years. Many problems with this unit. After few weeks, the junction of the wires between the transformer and the rest of the circuit burned. Solved the problem soldering the wires. The relay of the tuned input circuit in 80m band burned... replaced with a better one. The measure of the power output with the internal instrument is totally wrong in any band. No possible to obtain a good measure. The capacitor fixed-value for 160m don't permit match with my antenna. Replaced with better value.

-the knob for the band change is very little and hard to move.
-no more than 600 watt output, any band tested
-the circuit of the PTT is very bad. Using the direct keying, a relay is necessary because more of 90 volt are present in the plug. Using the other method of PTT require +12V during keydown, no one RTX has this function...
- 30 m band not available. I joined this band simply expanding the band selector, putting new junction in the coil, just in middle from 40 to 20 meter and using the 20m tuned input as input filter for 30m : work well, 500W output.
Recently substituted with more reliable FL-7000 from Yaesu.
My rating 1 for all this, and also for the poor kindness of the QRO email service.
NO7UP Rating: 5/5 Apr 16, 2003 16:13 Send this review to a friend
Great Amp!  Time owned: 3 to 6 months
Purchased a barely-used HF-1000 and was impressed with how beefy the components are for a single 3-500Z amp. These parts will probably never blow! Had low output on 15 meters and, with help from Ray at QRO, I got the problem solved. Turns out the plate choke had a resonance right in the 15m band. Per information in Richard Measures' articles, I removed a few turns of wire from the plate choke, which moved the resonance above the 15m band. And now I have a perfect-performing HF-1000! I would recommend driving this amp with around 60-70 watts, because if you drive it with 100 watts as indicated in the manual, the maximum ratings of the tube will be exceeded, resulting in a shorter service life for the tube. Eimac recommends a plate current of 400mA absolute max. Output 600-800 watts with 65 watts drive (IP 400mA); about 850-950 if you drive it with a full 100w. Quiet,cool operation. Looks really neat - much better than the pictures on the web site. Power meter should be considered a tune-up aid (not accurate). I use a separate outboard power meter for an accurate reading. Separate bandswitch positions for 12m and 17m, which assures a low input SWR (and max power out) on those bands. No 30m position. Good support from factory (be patient). Can't find much to complain about, especially considering how much better this amp is than the competition.
KX2T Rating: 5/5 Jul 19, 2002 08:44 Send this review to a friend
The Finest Single 3-500 Amp Around!  Time owned: 0 to 3 months
I picked up a used HF1000 a few weeks ago and I will say one thing about this amp, very impresive. This amp makes the other single 3-500 amps look like Tonka Toys, Peter Dahl xfmr, lots of cap in the supply. rectifier string that should really be for a larger amp, excellent cooling system without tons of qrm in the shack, vacum relay qsk system, HD output tank, solid HD bandswtch, tunes input, nice metering, the inside of this amp is like artwork or more like mil spec., the finest parts are used, a step start that work. Well I may have left out some things but how does it perform, well on 160 its around1K out, on 80 to 20mtrs its 1.1k, on 17its 1k, on 15 to 10 its 900watts. The amp does within 100 watts of a good SB220. I have had lots of Aplha's, ameritrons, heath, amp supply amps in the past but the only amps that are built this well are the alpha's and I have a feeling that QRO's might just be more of a heavier duty design. Highly recomend these amp, this is the way an amps should be built!

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