polifemo wrote:Hi,
Lately I've gotten really into Fuzz Face building again which is lot's of fun.
I've got a great selection of transistors, both germanium and silicon, but this far I've been unable to get my hands on some BC183L's.
I've got both B's and C's (built a very nice BC183C FF today
but I'm curious about the L's.
Not that I expect something "magical" about them, but I'd love to try some
Anybody that got some that I could buy?
/Peter
Theoretically, the Ls are not pre-sorted for gains. The voltage readings I've seen of vintage BC183L units indicate high gain (comparable to BC108C), though.
As these were the first silicon type Dallas Arbiter used, the circuit board layout is designed for their pinout. As a result, all other silicon types that were used later on had to use a piece of insulation on one lead and the leads were awkwardly twisted.
BC183KA is another type that was used before they settled on BC108Cs. K is for another funky pinout and A indicates the gain bucket. Q2C should read significantly lower with these.
polifemo wrote:Yes they do have a different orientation of the legs, but I'm still curious to try them out as they were used in the early silicon Fuzz Faces
As tonyharker said, the only different spec is the pinout.
It's unlikely you're gonna find the same exact type that Dallas Arbiter used back in the 60's. There are probably slight differences between transistors from different manufacturers.
