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johnh89's latest activity
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johnh89 replied to the thread Pickups for 3 pickup bass.I have a Burns Bison from 2009 ? . The best sounding bass I have ever played . But still mostly use just the neck with tone down ... -
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johnh89 replied to the thread NBD: Yamaha BB734A - Some Q's.Had mine for over 5 years . Absolutely no problem with it at all . All I have done was a quick set up and new strings when I got it and...
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Pulled the trigger on an open box BB374A for $700 shipped. Red! In the end I liked black best but a used price with full mfg warranty...
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johnh89 replied to the thread Help decide between two (or suggest).Yamaha all day long for me . Had mine for 5 years or so . it gets more playing time than all the others put together . You will not be...
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johnh89 reacted to tech21nyc's post in the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement with
Like.
The protection circuit has a 0 ohm resistor and the protection diode. The current spec is to replace it with 24 volt Zener diode... -
johnh89 replied to the thread Do You Have Any Idea Who I Am?.I don't know who you are , but I know what you are . :hyper:
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johnh89 reacted to agedhorse's post in the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement with Like.
Correct, and there are also a variety of different circuits that use transistors, MOSFETs etc. as switching and crowbar elements.
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johnh89 replied to the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement.Maybe . See above....
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johnh89 replied to the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement.I agree with agedhorse above . But if you are determined to have a go yourself , be prepared for failure if mistakes are made . You...
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johnh89 replied to the thread Tapewound curious.I have had Roto 88 tapes on my JCB since the day after I bought it 8 years ago . Also with a supertone bridge . They will never be...
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johnh89 replied to the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement.Based on the above , if you look at the bottom left hand corner of the schematic , it has 2 diodes for protection . D5 is a silicon...
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johnh89 replied to the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement.It depends on whether it is used in a series or parallel configuration . If parallel then will be a zener diode , if series then would...
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johnh89 replied to the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement.This is the only SMD diode I can find that looks similar enough . It is a zener diode in an SOD-80 package but without the schematic ...
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johnh89 replied to the thread Tech21 SansAmp Geddy Lee YYZ Protection Diode Replacement.Need to try and get hold of schematic ideally . Not sure how it is intended to work . The form factor looks like it is a zener diode but...
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Just wanted to say... I’m recording a bunch of songs for an indie folk artist this week. It’s my first session with the Yamaha BB435...
