[Amps] FW: AMERITRON AL-1500 ????

[Joe Subich, W4TV]

Jose, 

The AL-1500 has a slightly undersize output circuit and may melt 
the coil if you try to run "full soup" on RTTY.  Other than that 
- as you have noticed - it is a relatively good value for the 
money. 

There will be some who claim that the amplifier is unstable - 
far from it.  If Ameritron have not changed the design and it 
is built with good, low impedance ground on the screen , the 
amplifier is very stable.  

A significant problem with the 8877 is the ability to easily 
overdrive the tube.  An 8877 takes about 60 watts of drive to 
reach 1500 watts out.  Your FT-1000MP/MKV will drive the pants 
off the tube!   Be very careful about drive levels and tuning 
to keep the grid current below about 60 mA ... otherwise the 
tube is in danger (Eimac recommends 100 mA max for the grid). 

73, 

   ... Joe, W4TV (ex K4IK) 
  


> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Jose M. 
> Valdes R. YV5LIX
> Sent: Sunday, August 07, 2005 9:41 AM
> To: amps at contesting.com
> Subject: [Amps] FW: AMERITRON AL-1500 ????
> 
> 
> Hello all,
> 
> I'm getting ready for next winter 160 meters season and in 
> the process I'm upgrading the station, to starters I bough 
> a Yaesu FT-1000MP MARK-V with SSB and CW INRAD optional 
> filters and INRAD's Roofing Filters and now I'm looking 
> for a new lineal that will not deplete may back account, 
> so I have a question for the group.
> 
> While searching for an affordable amplifier I came across the 
> AMERITRON AL-1500 with the rugged 3CX1500A/8877 and I wonder 
> if any one here has used one of these amplifiers before and 
> what has been her/his experience with it, I will be in Florida, 
> Miami and Orlando from August 19th  until the 28th and
> would like to get the new linear from AES and perhaps meet 
> some of you guys.
> 
> Thanks for any information and or opinions regarding this amplifier.
> 
> Have a very nice weekend.
> 
> 73/DX Jose M. Valdes R. (Joe) YV5LIX
> eQSL.cc Advisory Board Member
> QSL manager EA7FTR
> SYSOP YV5LIX DX Cluster
> telnet://yv5lix.org.ve:7300
> VHF Packed: 145.430 YV5LIX
> http://www.yv5lix.org.ve
> 
> 
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