What's everyone opinion on piggybacking Transistors?

Spewbag · Post by **Spewbag** » 27 May 2010, 09:56

Discuss

lolbou · Post by **lolbou** » 27 May 2010, 15:28

You mean cascading them? I just don't get the "piggybacking" word allright...

Hides-His-Eyes · Post by **Hides-His-Eyes** » 27 May 2010, 16:37

Is this putting them in a darlington pair or something else?

freq67 · Post by **freq67** » 27 May 2010, 19:47

Piggyback is referring to tieing two si trannys together base to base and emmitter to emitter but only using one of the collectors. This is suppose to lower hfe to around germ values. I'm just curious how this little trick sounds in comparison.

Hides-His-Eyes · Post by **Hides-His-Eyes** » 27 May 2010, 20:02

Might have a little go on a breadboard when i get some more transistors in then. Where does the resistor go? (someone mentionned using a resistor in another thread about this, but the schematic they posted was lost into the depths of time!)

Spewbag · Post by **Spewbag** » 27 May 2010, 21:20

look up the "miss piggy" it's an adaption of the fuzz face that uses 4 trannys altogether two piggy backed each.

Spewbag · Post by **Spewbag** » 27 May 2010, 21:23

http://gaussmarkov.net/wordpress/circuits/fuzzy-logic/

Hides-His-Eyes · Post by **Hides-His-Eyes** » 27 May 2010, 22:02

Ah, I see now. Thank you!

marshmellow · Post by **marshmellow** » 28 May 2010, 11:14

viewtopic.php?f=44&t=458

freq67 · Post by **freq67** » 04 Jun 2010, 02:15

I like the idea of putting a pot in between both emitters but I noticed when I roll back the pot it gets a little dull and muffled could i put a RC section in there so when I rollback to the cleaner setting i can get it to sparkle a bit and if so how?

Thanks
Freq67