The great sound of the portable Philips AE6695/00

Yesterday the TDA7000 low IF radio IC was tried connected to - Realistic disco mixer - Sennheiser HD580. Not impressive. On the other hand a forgoten in the cupboard Philips AE6695 s/n 418744 sounds after cleaning amazing. The unsealed fader potentiometer was cleaned with cotton swabs and isopropyl alchol and Cailube. This FM radio can even drive the Pleiades linoleum Auratone 5C type speaker with great sound on bass boost setting in order to compensate for the small speaker size. On the Sennheiser HD580 the sound is amazing with full sound if not a bit bass heavy. Cymbals are mythical. When taking signal from the potentiometer which is after the bass boost switch but before the headphone amplifier and connecting the L,R mic input of the Realistic disco mixer driving the Sennheiser HD580 there is a surprise sound. This radio uses the IF=10.7MHz radio IC Sony CXA1238M and ST TDA2822 power amplifier.