[Elecraft] K3 Keyout?

[Jim Miller]

Thanks all. The 200v tolerance will handle the minimal energy produced by
the reed relay field collapsing.

73

jim ab3cv



On Mon, Sep 7, 2015 at 8:32 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> Why do you need to look at the schematic.  The K3S specification says it
> will handle +200 volts at 5 Amps, so those are the limits at the box level.
> No matter what the device data sheet for a device might indicate, there
> can be other considerations in the K3S design (or other 'boxes') that say
> you should observe the specifications for the entire unit rather than
> trying to re-engineer from the device specifications.
>
> 73,
> Don W3FPR
>
>
> On 9/7/2015 7:59 PM, Jim Miller wrote:
>
>> I don't have schematics for my K3S but going by those for the K3. The
>> KeyOut line (RCA Jack) is driven by a IRF1630 which appears to be out of
>> production. Either than or it is a misprint and is actually a IRF630.
>>
>> If the latter it appears pretty burly. Can I assume it can drive a pair of
>> reed relays without suffering an inductive kick failure?
>>
>>
>>
>