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