HELP! low bias and red plates after Lar/Mar mod

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fretwizard
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Re: HELP! low bias and red plates after Lar/Mar mod

Post by fretwizard » Fri Mar 15, 2013 11:51 pm

I did understand :)

I was just talking about a different problem. I should have said OFF-TOPIC rather than OT. :roll:
When I said balancing the PI I didn't mean doing it with the master volume resistors... just mentioning what I was going to try next, since I've read about it in other posts. I you can check the other thread and chime in it would be great 'cause I'm not sure I gave all the necessary info to get helped, I'm just an amateur at electronics... you can skip the first page since it was all about voltage checking...

Cheers :)

R

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Big Mike
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Re: HELP! low bias and red plates after Lar/Mar mod

Post by Big Mike » Sat Mar 16, 2013 10:23 pm

Seems to me you've made the safety resistors well...useless.
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fretwizard
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Joined: Wed Nov 23, 2011 3:30 pm
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Location: London, UK

Re: HELP! low bias and red plates after Lar/Mar mod

Post by fretwizard » Sat Mar 30, 2013 6:47 pm

Hi

I found another pot with matched halves (5k apart) and I'm using 2x 2.2M resistors. So I guess I'm protected now.
I also grounded the shielded cable instead of connecting it to the bias supply.
Thanks everyone for the advice! :)

R

ampprof
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Re: HELP! low bias and red plates after Lar/Mar mod

Post by ampprof » Thu Apr 11, 2013 10:50 am

Re measure the voltages

fretwizard
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Re: HELP! low bias and red plates after Lar/Mar mod

Post by fretwizard » Tue Apr 23, 2013 2:52 pm

ampprof wrote:Re measure the voltages

I did! all good now. :)

R

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