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 Post subject: Tweaker notes
PostPosted: Thu Jan 23, 2020 8:05 pm 
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Location: Brazoria County Texas
Hello Stephen, I was looking at the tweaker notes and in the schematic you have "see tweaker notes" on V3 pin 8. But when you look at the notes it says V2 pin 3. we want to explore some of these sounds and was checking on which is correct.

Thanks Mark


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 Post subject: Re: Tweaker notes
PostPosted: Thu Jan 23, 2020 8:19 pm 
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Oh and another thing. on the 64uf,100uf,150uf and the 47nf what type of cap should they be and what should the voltage rating be?
thanks


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 Post subject: Re: Tweaker notes
PostPosted: Thu Jan 23, 2020 9:09 pm 
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Joined: Sat Dec 04, 2010 3:42 pm
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Location: Qualicum Beach, BC
As you said, there's nothing mentioned about the tweak to V3 pin 8 on the schematic, but the builder's guide says this about it:

Optionally remove the 47n bypass cap on V3 pin 8. Removing the cap would reduce a fair bit of post-MV gain, as well as increase bass, but may not be to the liking of those folks who would want a Triwatt for its earlier breakup compared to a DR.

The other tweaks are in the cathode circuits of V1 and V2. The voltages there are really low, about 1 or 2 volts. You can use capacitors rated for 50 volts or higher, just to give it a good safety margin. The 64uF, 100uF, and 150uF are electrolytics. The 47nF can be the same as C1.


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 Post subject: Re: Tweaker notes
PostPosted: Thu Jan 23, 2020 9:26 pm 
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that is what I was looking for
thanks
Mark


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