Mike,
Contact Dick Frey, K4XU. Dick is Manager of RF Products at APT.
I believe the ARF1505 is the subject of an article in QEX (July?),
is being used in a Tokyo High Power Labs amplifier and "may"
be available in a package similar to those from CCI (board, etc.)
at some point.
Dick referred to the transistor as "the modern 3-500Z"
73,
... Joe, W4TV
> -----Original Message-----
> From: amps-bounces@contesting.com
> [mailto:amps-bounces@contesting.com] On Behalf Of mike kendall
> Sent: Wednesday, July 05, 2006 11:45 AM
> To: amps@contesting.com
> Subject: [Amps] Advanced Power Technologies ARF1505
>
>
> Hello,
> I have been looking at the Advanced Power Technologies,
> now owned by Microsemi, ARF1505 power MOSFET. It does
> 750watts power output and requires 300VDC. They have app
> notes and it claims to be easier to match than the 48vdc
> supply Motorola devices.
> Has anyone built one of these amps, a pair will get full
> legal limit no sweat and may be better than the typical
> MRF154 1KW amps. They appear to be very reasonable. The
> news link on them from a few years back stated around $150
> each in quantities of 100 units but I don't know how much in
> smaller quantities.
> This could possibly be a great topic for discussion and
> an outstanding project. They are supposed to use the same
> copper heat spreader and aluminum heat sink that the Motorola
> applications notes use and available from CCI (Communications
> Concepts Incorporated).
> The company also claims the power supply would be cheaper
> to build because of no need for a DC to DC converter as used
> in the 48VDC switching power supplies.
> These FET's are used with the medical applications and HF
> amplifiers. They work class A-E up to 30mhz and have a
> typical efficiency up to 75%
> I emailed the company for more info. and am waiting for a
> reply. Comments/discussion?
> 73,
> ETC(SW/AW) Mike Kendall USN
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