Big Muff Pi trannies

Started by Somicide, December 07, 2003, 03:41:12 AM

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Somicide

I'm new to this here, but I'd like to know if they can have both transistors(2N5088 and 2N5089) simultaneously.  from what i can tell, they are the same transistor, but with the 5089 having higher gain.  So theoretically, i could create a BMP with an intermediate gain (more than the all 5088s, less than all 5089s) if i employed 2 of each, yeah?  any help'd be greatly appreciated.  thanks.
Peace 'n Love

Ansil

yeppers  might not make a hill of beans difference though unless you get exact value reading from a meter.  can't always go by whats printed

Mark Hammer

2N5089's are supposedly lower noise than 5088's.  If one was going to use a combination of trannies, I'd go with a 5089 in the first stage, since subsequent stages will be goosing the signal and whatever noise comes out of that first stage.  Always best to start with the cleanest signal you can before exploiting high gain later down the line.

My experience has been that 5089's tend not to have dramatically higher hfe than 5088's.  Indeed, I tend to see more variation within 5088's than between 5088's and 5089's.

Somicide

thanks a bundle, the transistors are the last pieces i need and i'm set.  If all goes well, i won't have to steal my friends BMP russia anymore.

I know i have no braggin' rights yet, but I'm also building a Small Clone-type chorus to put in this extra wide casing with the BMP.  Chorus and Fuzz side by side, oh yea.
Peace 'n Love