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Archived from groups: rec.audio.tech,rec.audio.pro (More info?)
I'm sorry people are having trouble viewing the jpeg. You don't need
to sign in, just click the folder icon at the bottom and click again
on "shrt1.jpeg" Thanks for the info so far. Am I on the right track
for the resistors? There are five bands and none gold, so I am
assuming the wide band is tolerance. Also, Anyone know why I can't
answer a post directly? I'm using Google with Mozilla.
Robobass
Original post:
I am trying to copy a preamp circuit for an electrostatic transducer
pickup so I can make it stereo. It looks very simple, but there are
two little white blocks I cannot identify. One has a logo I don't
recognise and a number 022J400. The other says only 68nJ63. Are they
capacitors? If you want to see a jpeg, go to www.fotos.web.de/robobass
(You don't need to read German, just click on the folder icon at the
bottom left.) I have a Mouser catalog CD, but I'm not getting anywhere
just searching with these numbers. Does anyone know this logo?
Also, the transistors say BC 550B. Again, anyone know the brand?
Alsoalso, am I reading the resistor code (the wide brown band being
tolerance 1%) correctly?
My humble thanks!
Robobass
I'm sorry people are having trouble viewing the jpeg. You don't need
to sign in, just click the folder icon at the bottom and click again
on "shrt1.jpeg" Thanks for the info so far. Am I on the right track
for the resistors? There are five bands and none gold, so I am
assuming the wide band is tolerance. Also, Anyone know why I can't
answer a post directly? I'm using Google with Mozilla.
Robobass
Original post:
I am trying to copy a preamp circuit for an electrostatic transducer
pickup so I can make it stereo. It looks very simple, but there are
two little white blocks I cannot identify. One has a logo I don't
recognise and a number 022J400. The other says only 68nJ63. Are they
capacitors? If you want to see a jpeg, go to www.fotos.web.de/robobass
(You don't need to read German, just click on the folder icon at the
bottom left.) I have a Mouser catalog CD, but I'm not getting anywhere
just searching with these numbers. Does anyone know this logo?
Also, the transistors say BC 550B. Again, anyone know the brand?
Alsoalso, am I reading the resistor code (the wide brown band being
tolerance 1%) correctly?
My humble thanks!
Robobass