[Amps] Amplifier Research 15A250M3 amplifier

[Fuqua, Bill L]

  I realize this is a bit lower power than we usually discuss. But I may be using this amplifier while experimenting with 
some tetrodes. The plan is to use a signal generator and this amplifier as a driver. 
   When I was initially testing the amplifier I had a 20 Watt 40db attenuator between it and spectrum analyzer and 
tracking generator. I was looking at the bandwidth without thinking much about the actual output power at the time.
But when I turned it off and reached to move the attenuator, I burnt my hand!!!. That was when I realized it was producing
more than 50 Watts during the test. Apparently it will produce several times the power than advertised. I am interested in
finding out what protective devices it has with in, if any, for SWR, over temperature, excessive current, etc. 
73
Bill wa4lav


________________________________________
From: test-equipment-bounces at mailman.qth.net [test-equipment-bounces at mailman.qth.net] on behalf of Fuqua, Bill L [wlfuqu00 at uky.edu]
Sent: Wednesday, June 19, 2013 1:51 AM
To: amps at contesting.com
Cc: test-equipment at mailman.qth.net
Subject: [Test-Equipment] Amplifier Research 15A250M3 amplifier

     I just received an Amplifier Research 15A250M3 amplifier which is in good shape and working condition.
Checking to see if anyone has a manual or perhaps a schematic. Please email me directly if you can help.

73
Bill wa4lav
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