6 - Microphone ampliers - discrete

In keeping with not using any special parts, I would like to make my microphone amplifiers without using ICs (a bit daft I suppose since we wil always be able to get/buy opamps...)

A quick google on "mic amplifiers discrete" found the schematic below, I am unsure who to attribute it to as it pops up in 3 or 4 places on the web, google first found it at

http://www.zen22142.zen.co.uk/Circuits/Audio/dyn_mic/dyn_mic.htm

And Andy Collinson says; amplifier for dynamic mic of 200 to 600 Ohms, gain of +39dB or x90. Q1 is run at low Ic to give better noise response, <5uV up to 5kHz.

I need to fiddle with the values to reduce the bandwidth to 5kHz, as it stands below it is flat to over 100kHz.

Andy also has an electret mic version by omitting the first stage above. Note if using a 2 terminal electret simply connect the series input capacitor to the bottom of the 1k bias resistor.
see http://www.zen22142.zen.co.uk/Circuits/Audio/ecmmic.html

Gain of this is 20dB to way over 100kHz, output Z very low.
I may run this circuit thru LTSPice to optimise frequency response and to test with feeding a 50 Ohm output load...