Dual Transistor IC's

bumblebee · Post by **bumblebee** » 07 Dec 2007, 07:03

I'm wanting to try some IC's in place of transistors in some fuzz i got goin on and i was hoping some of you guys might know what, if there is, dual transistor IC equivalents of:

2N3904
2N5089
2N2222
BC109C

???

kinda like the TO-116 MPQ3904 but only two transistors.

i couldnt find anything much online so i hope you can help.
thanks peoples!

analogguru · Post by **analogguru** » 07 Dec 2007, 08:45

The most spreaded transistor-array is the CA3046/CA3086.

There exist dual-transistors but they will we more expensive - like the LM 394. Most of the time they will have common collector or common emitter and be hardly available.

I can see no real benefit by using a transistor-arrayinstead of single ones.

analogguru

bumblebee · Post by **bumblebee** » 07 Dec 2007, 09:26

ok, and what about matched quad transistor arrays?
equivalent of 2N5088?

R.G. · Post by **R.G.** » 07 Dec 2007, 15:03

http://www.diodes.com -> small signal bipolar -> dual

THAT Corporation 300 series dual

The CA3046 is available here: http://www.web-tronics.com/ca3046.html for about $2 each.

There are no high voltage/high beta/low noise quad equivalents to the 2N5088 that I know of. Probably the THAT Co. comes closest.

However, with 2N5088's costing $0.05 each, you can afford to build a matching fixture and find four that you can epoxy together to a strip of aluminum to make an almost-quad pretty easily.

bumblebee · Post by **bumblebee** » 07 Dec 2007, 23:25

thanks RG!
i ended up finding one of the ones i wanted in a TO-116 DIP.

MPQ2222 is basicaly what i was after, although i wanted a dual transistor, it dont make a difference. i found them at jameco for $2.79ea, dearer than 4 PN2222A's but still inexpensive imo.