aProgrammer
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Posts posted by aProgrammer
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Certainly it doesn't work because the 2N3055 is not a PNP transistor.
Perhaps It could work with a PNP transistor like TIP2955 but I am even not sure. -
I think this could be a philips
BSR62
http://www.datasheetcatalog.com/datasheets_pdf/B/S/R/6/BSR62.shtml -
Clearly there are a mistake,
the + and - inputs are inverted
no doubt is possible ! -
Could be a MC34017-1 :
http://www.freescale.com/files/timing_interconnect_access/doc/inactive/MC34017.pdf -
Yes, Vin+ can be regulated instead of V1.
possibly a zener,
better replace R3 by a 78LXX or TL431 -
The precision of this circuit is limited by
the transistor's Hfe
because Ic is not egal to Ie
a mosfet transistor will be better
because Idrain = Isource
also V1 should be regulated
because if V1 drop by 1%,
the current will drop also by 1% -
160 + 60 = 220
if you connect O and A
you get 220pF max -
yes SN72... are linear ICs
I searched and found SN7216 don't exist
all SN72... are SN72XXX (five digits)
for example,
SN72106 = LM106/206/306 -
I think this could be
a U666BS telefunken (TFK) prescaler
http://www.alphacron.de/download/hardware/U666.pdf
datasheet
in Datasheet/Parts requests
Posted
M455E = CFM455E ceramic filter