On the same note, let's all talk power supplies. I have used many, but
Pyramid seems to be very popular. I have had a couple, and they all used
2N3055's as the finals. However, they are set up in parallel, not well
matched, and if one shorts it dumps full voltage, about 18-20 volts, to the
radios because they didn?t have a crowbar or shutdown circuit. Found that
out the hard way. It was cool how bright the displays on the radios got :)
Joe Serocki
N9IFG
www.welcars.org
www.stonedmonkey.org
www.tke-nu-iota-alumni.org
www.venturecrew743.org
www.foxlaketroop85.org
www.ayso428.org
IRLP Node 4239
If you don't like it SPIN THE DIAL!
Quando omni flunkus moritati!
America is returning to the values Scouting never left.
-----Original Message-----
From: vhfcontesting-bounces@contesting.com
[mailto:vhfcontesting-bounces@contesting.com] On Behalf Of MICHAEL SAPP
Sent: Tuesday, May 20, 2008 11:21 PM
To: VHF TEST REFLTR
Subject: [VHFcontesting] Nuking
Nuking = The tendancy for Mirage amplifiers to break into full power
oscillation when presented with an output impedance load of anything other
than 49 to 51 ohms resistive. Owned one once. Never again. WA3TTS
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
|