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1 21st April 16:19
jaz
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Default BC109B Transistors (for wah pedals)


Where can I find these? Supposedly Mouser has them but when I search
on it, I get: 526-NTE123A NTE123A

Is that a functional equivalent?

Jaz
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2 21st April 16:19
ray e
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Default BC109B Transistors (for wah pedals)


NTE is a company that makes equivalent semiconductors for many of the common
ones that are no longer available from the original manufacturer. I've used
NTE replacement parts on many things in the past and normally with good
results. I have my NTE cross reference at work but an NTE123A is a fairly
common replacement transistor.

--
Ray from Rochester, NY
Trombone, Keyboard, Guitar, Mandolin,
and Bass, Player wanna be.
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3 21st April 22:05
jack a. zucker
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Default BC109B Transistors (for wah pedals)


Is the 2n222a about the same gain?

Thanks

Jaz
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4 21st April 22:07
jack a. zucker
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Default BC109B Transistors (for wah pedals)


Thanks Jerry.
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5 22nd April 14:35
jason
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Default BC109B Transistors (for wah pedals)


what kind of tone change happens? I have a Vox V847 reissue and it has
MPSA18's..... seeing this thread has me thinking of changing those out.

--
Jason

".... been a long time crossing.. bridge of sighs."
{Robin Trower - Bridge of Sighs}

"Calling spam food is like calling an inflatable doll a serious love
interest." {unknown}
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6 22nd April 14:36
jason
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Default BC109B Transistors (for wah pedals)


Would you happen to have a schematic? Or is readily availble on the various DIY websites?

Yes they can be rather noisy.... i'm about ready to change the ones i have
in my Fuzz Face out and substitute the more common carbon film. You using
metal film resistors or if not, what type?


I have the fulltone inductor in my Vox, along with the wah pot he sells.
Both are very good.... although i'm thinking i may need to replace the pot
soon.... or just perhaps spray contact cleaner into it. My curiosity
about the inductor made by Stuart over in England is rather piqued.
According to his information, it's a clone of the Halo inductor... which,
as you prolly know, was the original inductor in the Clyde McCoy Vox wahs.


Cool. Did you order them from a person or some online company? If it's
the later, who did ya get them from?


I've been using a 30 watt available from Radio Shack for the longest time.
Works fairly well and hasn't failed me yet.

--
Jason

".... been a long time crossing.. bridge of sighs."
{Robin Trower - Bridge of Sighs}

"Calling spam food is like calling an inflatable doll a serious love interest." {unknown}
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7 22nd April 14:36
jack a. zucker
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Default BC109B Transistors (for wah pedals)


You should be able to get the schematic from one of these sites. There are a
ton of variations of the GCB-95. If you have a newer one, it has a buffer in
it. The buffer is cool but if you want the original wah sound, you'll have
to remove the buffer. There are explanations for doing that on several of
these sites. Let me know of you find something else cool. Apparently Gil
Ayan was posting some stuff about wah mods and had a page up about it but I
couldn't find it...

Here's some miscellaneous wah links:

Let me know if you find anything else cool. I've got my GCB-95 sounding
really great but would like to get closer to the italian wah sound...

http://www.generalguitargadgets.com/wahwah.html
http://fuzzcentral.tripod.com/mckoy.html
http://members01.chello.se/pastorn/fx/mods/dunlop.htm
http://www.green-fuz.freeserve.co.uk/wah.html
http://www.wah-wah.co.uk/
http://home.cfl.rr.com/dbhammond/doug.htm
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8 22nd April 14:37
analogmike
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Default BC109B Transistors (for wah pedals)


Hi,


comps but I don't believe those make any difference in tone until you
get way above
human hearing. They are also noisier and they drift more...<<


in my Fuzz Face out and substitute the more common carbon film. <

The noise generated by a transistor (especially the ones used in fuzz and wah
pedals) is many times greater in magnitude than any possible resistor noise,
unless the resistor has failed. So don't think you will be able to hear, or
even measure with a fine instrument, any noise improvement in a guitar pedal
like a wah or fuzz, by changing the resistor types.

As my old boss would say, "it's like pissing in the ocean".

(I still wont drink seawater though!)

Regards, mike ~^v^~ ****oG.MaN ~^v^~

Mike "at" ****ogman dot com http://www.****ogman.com

Check out my effects Forum: http://forums.delphiforums.com/guitareffects
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9 23rd April 14:30
jack a. zucker
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Default BC109B Transistors (for wah pedals)


Just an update...The NTE123A does not appear to work in this circuit...
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10 23rd April 23:56
apinne1002
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Default BC109B Transistors (for wah pedals)


Check your install. It will work. What did you install it in? Some Crybabys
have the transistors ECB and newer ones are EBC.
Jerry
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