any pcb

[Igor MN]

Hi Carl. When can i expect PCB of Hummerhead i ordered 4 weeks ago?I've sent You cash buy mail,and i am eating my nails waiting for PCB did You recive it?
greetings

[Carl-NC]

It could be in my pile of mail, unopened. Email me your address and I'll go ahead and send the PCB. Specify thru-hole or SMT.

- Carl

[Igor MN]

Thanks Carl, You are the BEST.Can't wait for pcb

and Merry Christmas!

[Igor MN]

Hi Carl

Yesterday a have recived a pcb of HH.looks great,piece of art!cant wait to start buiding.
Thank You very mutch,and sorry for rushing

best regards
Igor

[Igor MN]

Hi Carl,

I started to build HH but in power circuit I have experienced some problems. I am using AC/DC adapter to get 11V for power supply. I am getting voltage readings on IC2 pin1, IC3 pin3, IC4 pin3 the same voltage like power supply 11V or a little less, not +/- 5V like I should.

What could be the problem?

[Carl-NC]

Put your multimeter ground lead on the circuit ground, i.e., IC1-pin8. Measure -VB (IC1-pin3)... you should have -11V to -12V. If you measure a positive voltage you have the adapter polarity backward.

Now measure IC2-pin3, the input to the 7805. You should read +10V to +11V. If not, IC1 might be bad. Also watch the polarities of IC2, IC3, and IC4. Also cap polarities.

- Carl

[Igor MN]

Hi Carl,i found my mistake.switch was bad.now i am geting 4,9 V. +- where needed,with 11 V power.thet seems OK?