Simple buffer schematic

[Gus]

Simple textbook bootstrapped NPN buffer schematic

R6 is not always needed
C1 C2 and C4 can be adjusted
Different transistor numbers can be used even Ges should drop in
Can be changed to PNP invert the PS and cap connections
Schematic is from a LT spice sim.



R5 should drive the input string better as a 3.3k, 4.7K

EDIT
Output is taken from C4, R6 node
Input is at the left of C1 use around a 2.2meg pull down if you use this as the input buffer

One can adjust resistor values however this should work well for most effects

It is emitter follower EF with the Voltage Base to Emitter taken into account with the 22K and 33K values picked.
One can add a Si diode in series with the "bottom" resistor in the divider string and use the same value resistors to adjust for the VBE drop.
For more drive use a lower value emitter resistor like a 3.3K.
The input 1K is for stability.  EF's can have stability issues.

[brett]

Like. 

[Gus]

I should have titled this super deluxe buffer and not used simple.

Look at R.G.s write up on the ts output buffer also if you know how, sim the circuit and check the input resistance with a higher Hfe transistor like a MPSA18 with the emitter resistor at 3.3K etc.

Should work well as a wha buffer etc.