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Sendt: 15. december 2012 13:26
Til: elecraft@mailman.qth.net
Emne: [Elecraft] K3 overvoltage protection
Hi guys, I am a new owner of a K3 serial number 6990 (must say I am mighty
impressed by it) and considering its cost I
) for D28 .
73/OZ4UN
-Oprindelig meddelelse-
Fra: [hidden email] [mailto:[hidden email]] På vegne af G4HUE
Sendt: 15. december 2012 13:26
Til: [hidden email]
Emne: [Elecraft] K3 overvoltage protection
Hi guys, I am a new owner of a K3 serial number 6990 (must say I am mighty
impressed
Hi guys, I am a new owner of a K3 serial number 6990 (must say I am mighty
impressed by it) and considering its cost I wondered if it had overvoltage
protection. I dread the thought of destroying my K3 due to PSU failure! I
have searched the past postings and cannot find anything relevant to the
I recently purchased a 35 amp Astron power supply at a hamfest (in great
condition). Upon inspection, I found that the crowbar SCR had failed, and had
been removed.
Although I've replaced the SCR, I'm wondering if the K3 has overvoltage
protection of some kind?
As an aside, I would like to
Dan:
If the Astron is working AS INTENDED, when the OVP SCR fires, the UA723 VReg
will immediately go into over-current protect mode, reducing the output current
to 1A WITHOUT damaging ANYTHING! Same as if you placed a short directly
across the output terminals of the supply.
The ONLY time the
To: Dan Jean dml...@gmail.com; elecraft@mailman.qth.net
Sent: Sunday, February 28, 2010 7:35 PM
Subject: Re: [Elecraft] [K3] Overvoltage protection?
Dan:
If the Astron is working AS INTENDED, when the OVP SCR fires, the UA723
VReg
will immediately go into over-current protect mode, reducing
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