[Amps] question about SPE 1.3K FA amp

[Jeff AC0C]

Here's an alternative to that Yaesu VL-2000 that never came to market.

http://www.dishtronix.com/prometheus.html

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie

-----Original Message----- 
From: amsctalx at comcast.net
Sent: Thursday, November 12, 2015 10:18 AM
To: amps at contesting.com
Subject: Re: [Amps] question about SPE 1.3K FA amp

Quadras aren't bullet-proof; the RF deck seems to be rather solid but the 
control circuitry is another topic entirely. I don't have the schematic at 
hand, but the Quadra has an unregulated DC "sub-supply" ahead of the main 
logic board to provide Yaesu transceiver-controlled power switching. This 
supply uses "fuse resistors" to provide protection and drop the voltage to 
the logic board, and there is a tendency for these to open in the presence 
of relatively mild transients. This requires opening the amp up to the core 
and replacing devices that are rapidly becoming obsolete. It takes a rather 
substantial line conditioner ahead of an amp to help prevent this from 
happening on a routine basis. The Quadra tuners, which I realize are not the 
primary reason for buying the amp, struggles to make matches within the 
advertised impedance range.

They're great amps, but hardly perfect and that's why I'm one of the people 
that replaced them with Experts.

73,

Mike - N8MSA

----- Original Message -----

From: "Doug Renwick" <ve5ra at sasktel.net>
To: "Richard Solomon" <dickw1ksz at gmail.com>, amps at contesting.com
Sent: Thursday, November 12, 2015 10:29:44 AM
Subject: Re: [Amps] question about SPE 1.3K FA amp

Why in the world would you replace a bullet proof Quadra with a SPE 1.3K-FA?
Power output is essentially the same for all bands.

Doug

I wasn't born in Saskatchewan, but I got here as soon as I could.

-----Original Message----- 

The SPE 1.3K-FA comes with a 2 Year Warranty.
Warranty work (for the most part) is done here in
the States.

With that kind of Warranty SPE must be very
confident in the Amps survival.

Mine should be here this week !! It will replace a
YAESU Quadra.

73, Dick, W1KSZ



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