Deluxe Electric Mistress pre-test precautions.

[Davefx]

I 'm getting ready to test my Deluxe Electric Mistress! I have the 4013 and the SAD1024 removed from the board, and before I insert them, I have just a few concerns.  I have all the B+ voltages at all the required pins, and there appears to be no shorts. My voltage coming out of my 15v regulator seems higher than I think it should be. On the reg. output pin I get 16.6v, and at all the chips that I do have inserted, I'm getting 17.2v!.  I have 2 9v's in series feeding the regulator, as I'm just testing with them, because I will be using MAX1044 charge pump circuit, not an xfmr. Are these safe voltages for me to go ahead and put my $15 dollar, becoming extinct, SAD1024 in?

I'm down to the final test, I don't want to fry anything.... Thanks all

[ExpAnonColin]

An SAD1024's max voltage is 17...  I don't know, I'd check your connections/regulator before continuing just to be reeeeally safe.  If your clock generator ouputs more than 17, check everything, definitely.. and check the V at the SAD1024's Vdd, make sure that's not more than 17.

-Colin

[Davefx]

Thanks Colin...  I'm gonna try another reg. I could see if something was dogging the voltage down, but this is the opposite, so I'll try that 1st..
Will let ya know how it goes...

[Davefx]

New reg. is putting out 16.4 and I'm getting 17.3 @ all the Vcc's.  
The 2 batteries are feeding the reg. with only 17.6v, is this too low to be feeding it with, perhaps?

[ExpAnonColin]

Hmm hmm hmm... I'll let someone else step in who has done an EM before and give their peice.

-Colin