This is the version I used. I see when I have another look it is version3 anyway it seems to work for me. circuit as below.

<nkpnlcmibkchkphb.png>

I added at the junction of the 1k resistor and the emiter of the 2N3906 a 22mf Tantalm and a 103 ceramic capacitor and feed the 12v via a 100ohm resistor.

Ted

On 18/08/17 6:37 PM, Rajendran Mayilsamy wrote:

Hi Ted,,

Pl post the Version 5 circuit diagram..Your HB assembly nice construction...tnx n 73 de Raj ,VU2SMM

On Fri, Aug 18, 2017 at 11:22 AM, Ted Doell <ted@...> wrote:

Hi all

I have made up and installed version5, now all I hear is the relay clicks.

Photo of board attached.

Ted

ZL1BQA