[time-nuts] Stepping up the output of an OCXO

Dr Bruce Griffiths bruce.griffiths at xtra.co.nz
Thu Feb 1 22:45:57 EST 2007


Attached GIF file is the schematic for a common base amplifier with 
about 12dB of gain into a 50 ohm load.
The amplifier will not saturate even if the load is open circuited.
Q102 temperature compensates Q103 which regulates the dc collector 
current of the common base transistor.
Other transistor types with equivalent performance may be susbstituted.
The RF transformers are coupled to the amplifier with series capacitors 
to avoid saturating the cores with dc current.


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