[Elecraft] Interlocking two K3

[Joe Subich, W4TV]

The Key Out (LP) lines pull the TX Inh inputs low when transmitting.
However, this is the "simple cross connection" that will result in
neither transceiver transmitting if both try to transmit.

73,

    ... Joe, W4TV

On 10/9/2016 2:16 AM, Val wrote:
> Charlie, how this could work after there is no way the TX Inh inputs to
> be pulled down?
>
> 73, Val LZ1VB
>
>> Roger:
>> Look at:
>>
>> http://www.kkn.net/~n6tv/SimpleElecraftK3SO2RLockoutCircuit.pdf
>>
>> I belive it's different than the one you described in your email. I've
>> used this one successfully.
>>
>> 73 charlie, k1xx
>>
>> On 10/8/2016 12:59 PM, irdixon+lists wrote:
>>> Hi All
>>> I don't like re-inventing the wheel, so I'm looking for a design to
>>> copy!
>>> I'm looking for a circuit to interlock two K3 so they cannot transmit
>>> simultaneously.  I am aware of the simple connection cross linking the
>>> PTT out and Inbibit input on the 15 pin connector.  That does not meet
>>> our needs as when both try to transmit - both are inhibited !!
>>>
>>> TIA
>>> Roger - G4BVY
>