I've always done the following to see if I was going to toast something.
Maybe someone can tell me the error of may ways (the last thing I did this
on was a $1,400 Video Camera - if the method is dangerous, I'll stop!).
I hook the 6V Camera up to a 6V power supply (actually a variable voltage
PS)
Guys, there are several things to consider when raising the input
voltage to the K2 family.
First, power loss in the regulators. There are several 5V, 6V and 8V
regulators on board. If you have a 12V source to a 6V regulator, you
will be burning up as much power in heating up the regulator
] Highest power supply voltage for K2?
I've always done the following to see if I was going to toast something.
Maybe someone can tell me the error of may ways (the last thing I did this
on was a $1,400 Video Camera - if the method is dangerous, I'll stop!).
I hook the 6V Camera up to a 6V power
AM
Subject: RE: [Elecraft] Highest power supply voltage for K2?
I've always done the following to see if I was going to toast something.
Maybe someone can tell me the error of may ways (the last thing I did this
on was a $1,400 Video Camera - if the method is dangerous, I'll stop!).
I hook
I worked in the semiconductor industry and I remember frying a bunch of
chips when I reached a knee in the current draw. You can increase the
voltage until something breaks down, and then you're hosed. Lots of
current flows and your semiconducting device is no longer conducting at
all since you
with no load.
73/ Bob - W5BIG
- Original Message -
From: Dan Barker [EMAIL PROTECTED]
To: Elecraft elecraft@mailman.qth.net
Sent: Tuesday, November 30, 2004 7:29 AM
Subject: RE: [Elecraft] Highest power supply voltage for K2?
I've always done the following to see if I was going to toast
I see old messages about undercharging the K2's internal battery if you don't
use more than 14VDC for the PS.I had a nice 15VDC 20W wall wart that I
thought would make a perfect PS/charger for the K2. The trouble is while
drawing 350ma in receive the K2 shows a supply voltage of 17.2 VDC.
[EMAIL PROTECTED]
writes:
What is the absolute highest safe voltage you can pump into the K2 before
you start overheating the regulators etc?
-
The K2 manual says 9 to 15 vdc
I'd be inclined to believe them if you want to keep
PROTECTED]
To: [EMAIL PROTECTED] ; elecraft@mailman.qth.net
Sent: Monday, November 29, 2004 9:29 PM
Subject: Re: [Elecraft] Highest power supply voltage for K2?
In a message dated 30/11/04 02:01:23 GMT Standard Time, [EMAIL PROTECTED]
writes:
What is the absolute highest safe voltage you
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