[quote name='Stewart' post='671258' date='Dec 1 2009, 04:35 PM']What you really need is filtered noise - best bet would be a detuned AM or FM radio feeding a wah or flanger![/quote]
I play keyboards/noise generator in a Hawkwind covers band and I have used the noise section of a Juno 106 playing around with the filters on the synth and delay, also used soft synths in cubase with phaser and delay, so I would say the radio with flanger could be a good way to do it, and as previously mentioned on the thread very much in the spirit of Hawkwind of the time.