I recently acquired a Grundy NewBrain PSU with the intention to use it with a NewBrain Model A that I had recently purchased second hand. As soon as the unit arrived I knew that I recognized it from somewhere, yet I have never had any previous exposure to the NewBrain (this new interest only came about after watching Micro Men). Anyway, I was astonished to find that the computer-side lead terminated in a QL power connector. Needless to say this will not fit the 6 pin BERG connector on the NewBrain and, anyway, three pins can't carry three power lines and a ground return.
I did some research on the internet and discovered that it's possible to use a NewBrain PSU to power the QL by connecting directly to the transformer secondary for the AC source and shorting out the temperature trip to allow the unit's 6.5V DC output to overrun enough to run the QL's 9V input (QL needs 1.8A, the NewBrain PSU is rated to 1.2A). I have to say this seems like a rather dubious arrangement to me, but, anyway, my real question is this: I'm sure I have a vague memory of using a PSU just like this to run a QL in the distant past. Were these ever converted and sold commercially as alternative QL PSUs? I'm just interested. And I don't suppose anyone could recommend a source for the 6 pin BERG connector (two rows of 3, keyway centre top, opposite side to guide) so that I can put this PSU back to its original state? Regards, Adrian _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
