Re: [Elecraft] Older K3/100s can be updated to avoid possible "ERR 12V" problem

2012-02-14 Thread Wayne Burdick
I'll look into the date. tnx Wayne > On Feb 14, 2012, at 8:20 AM, Jack Berry wrote: > >> Wayne, >> Define "older K3" please. Can you let us know when you started >> shipping K3's with gold contacts; date or S/N? >> >> Thanks! >> Jack - WE5ST > _

Re: [Elecraft] Older K3/100s can be updated to avoid possible "ERR 12V" problem

2012-02-14 Thread Jack Berry
2012 9:53:28 AM Subject: [Elecraft] Older K3/100s can be updated to avoid possible "ERR 12V" problem Early K3s had tin plating on the connectors that supply 12 V DC to the KPAIO3 and KPA3 modules. We discovered that in some climates the tin plating can eventually corrode, reducing

[Elecraft] Older K3/100s can be updated to avoid possible "ERR 12V" problem

2012-02-14 Thread Wayne Burdick
Early K3s had tin plating on the connectors that supply 12 V DC to the KPAIO3 and KPA3 modules. We discovered that in some climates the tin plating can eventually corrode, reducing voltage to the PA module, especially when operated at high duty cycle. This can result in an "ERR 12V" warning