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Boss 9v psu question

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Boss 9v psu question

PostPosted: Fri Sep 07, 2018 10:19 pm
by Dr R
Really quick question:
I have just bought a Boss TU-88 tuner/metronome/mini monitor for practising with. It runs of 9v battery or a 9v Boss psu. Annoyingly it doesn't say what the current draw is, or whether the centre is negative or positive. I have googled it, but not found any specs.

Does anyone know? I have half a dozen spare psus, hopefully one will work.

Thanks as always, Rich

Re: Boss 9v psu question

PostPosted: Fri Sep 07, 2018 10:51 pm
by Wonks
Boss are always centre negative. Current draw is 30mA.

https://www.boss.info/us/products/tu-88/specifications/

Re: Boss 9v psu question

PostPosted: Sat Sep 08, 2018 7:48 am
by ef37a
Wonks wrote:Boss are always centre negative. Current draw is 30mA.

https://www.boss.info/us/products/tu-88/specifications/

"I love it when a plan...."

Nice one Wonks.

Dave.

Re: Boss 9v psu question

PostPosted: Sun Sep 09, 2018 5:42 pm
by Sam Spoons
Did this work on the same principle as, when needing to know the time during the early hours, sticking a drum out of the window and banging it with enthusiasm? Somebody is bound to shout "who the hell is banging a (insert choice of expletive here) drum at 2 o'clock in the morning?

I'll get me coat