[Amps] Good amp to buy

[Gary Smith]

I recently purchased a Ten-Tec Centurion. Two 3-550 Z's, have seen 1200-1300 on a bird wattmeter with 100 Po. Amp is twenty years old, parts are still available.  am going to replace the muffin fan as it is doing when I was twenty years old.  Likes to howl a bit.  Not a bad buy, in today's used equipment market, difference between it and a legal limit amp (in db) isn't worth the cost or hassle. But it will not do that Po level in continuous duty.
But it does have QSK as standard equipment.
My .02 on this,
73, Gary...wa6fgi
 
  ----- Original Message ----- 
  From: Dave Hachadorian 
  To: amps at contesting.com 
  Sent: Wednesday, January 27, 2010 12:18 PM
  Subject: Re: [Amps] Good amp to buy


  There are eight 450V caps in the filter string. At 4KV, you are 
  really walking on the wild side. The caps won't get warm, and 
  they won't hiccup. One of these days, you will experience the big 
  bang.

  Dave Hachadorian, K6LL
  Yuma, AZ

  --------------------------------------------------
  From: "Gary Smith" <Gary at ka1j.com>
  Sent: Wednesday, January 27, 2010 12:35 PM
  To: <Amps at contesting.com>
  Subject: Re: [Amps] Good amp to buy

  >> > I haven't seen a lot of the commercial QRO amps but my
  >> > Ameritron AL-
  >> > 1500 tapped for 4KV on the tube gives me 1500 key down for
  >> > between 35-
  >> > 40W on all bands.
  >>
  >>
  >> Here's an excerpt from the AL-1500 Manual:
  >>
  >> "NEVER REWIRE THE POWER SUPPLY TO BOOST
  >> THE HIGH VOLTAGE ABOVE 3700 VOLTS."
  >>
  >> At normal 3600 V, the Al-1500 puts out 1500 W with about 50 
  >> watts
  >> drive, so why push the envelope by boosting the HV?
  >>
  >> Dave Hachadorian, K6LL
  >> Yuma, AZ
  >
  > Came that way when I got it a year ago; caps are not warm after 
  > hours
  > of operation. Doesn't arc or hiccup in any way. I like the low 
  > drive
  > requirement.
  >
  > Gary
  > KA1J
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