For ease and time saving it was decided that the first experiment uses only what is already available.
So a Shure Unidyne III microphone driving a Pleiades V5 preamp driving a Sony cassette adaptor. It is those cassettes that have inside them a stereo magnetic head connected to the external cable. The cable is usually connected to a portable CD player line out for playing CDs in the car by inserting the cassette adaptor to the car cassette player.
The setup used under modulated the tape recorder as there are only 2 electron tubes from mic to magnetic head.
The sound was interesting reminding the sound of analog recording. There was something loud about the voice even at such under modulation, the VU meters barely moving and tape recorder sounding with hiss as expected.
It must also be taken into account that there may be some peak limiting processing already from the second electron tube stage operating with only about 6V at the anode.
The cassette adaptor head was coupled to this anode through a capacitor to bloc DC.
The cassette adapter was inserted to Sony TC-D5 Pro with the pause and play buttons pressed.
Then some experiments were done with the Pleiades V5 directly driving the SONY TC-D5 input transformers and recording the sound on type II cassette (see next post).
Signal path, setup:
Living room with some Pleiades panel absorbers - male voice singing the end phrase of Words-Bee Gees - Shure Unidyne III - Pleiades V5 - Sony car audio cassette adapter CPA-11 - Sony TC-D5 Pro - Sennheiser HD580
No comments:
Post a Comment