CassetteMaster | Norelco (Philips) EL3583 STS Self-Threading System Recorder @CassetteMaster | Uploaded 5 years ago | Updated 16 hours ago
An old Philips/Norelco dictation machine, this tape recorder uses two separate cartridges, a supply and a take-up. It is like a hybrid between reel-to-reel and cassette!
AC bias. (AC erase?) Preset single level, no ALC or level adjustment.
A big thanks to Jeff Bambrough!
Recorder country of origin: Holland!
Recorder from around 1965.
Speed 4.5cm/sec, just a tad slower than 4.8cm/sec (1 7/8 IPS).
Capstan-drive.
Has time-counter, from 0 to 20 minutes. Tapes are 20 minutes per side (half-track mono).
Narrow frequency response for voice dictation. Actual frequencies unknown. Not too much bass response, but it does have a little.
Even when riding in an automobile, this recorder will record the human vocal tract with great clarity, without much car noise at all.
Microphone also acts as a speaker, as was common on dictation machines for some reason. However, with an impedance matching transformer (or a 120Ω speaker) the push-pull amplifier will drive a speaker at a decent volume, especially if the loudspeaker is really efficient, such as the Altec-Landsing 400 B speaker shown.
Speaking of speakers, a typout to SpeakerFreak95!
This is a fun recorder to show, it is such an interesting format. And it is so dang well made. Metal mechanics, built like a bloomin' tank!
An old Philips/Norelco dictation machine, this tape recorder uses two separate cartridges, a supply and a take-up. It is like a hybrid between reel-to-reel and cassette!
AC bias. (AC erase?) Preset single level, no ALC or level adjustment.
A big thanks to Jeff Bambrough!
Recorder country of origin: Holland!
Recorder from around 1965.
Speed 4.5cm/sec, just a tad slower than 4.8cm/sec (1 7/8 IPS).
Capstan-drive.
Has time-counter, from 0 to 20 minutes. Tapes are 20 minutes per side (half-track mono).
Narrow frequency response for voice dictation. Actual frequencies unknown. Not too much bass response, but it does have a little.
Even when riding in an automobile, this recorder will record the human vocal tract with great clarity, without much car noise at all.
Microphone also acts as a speaker, as was common on dictation machines for some reason. However, with an impedance matching transformer (or a 120Ω speaker) the push-pull amplifier will drive a speaker at a decent volume, especially if the loudspeaker is really efficient, such as the Altec-Landsing 400 B speaker shown.
Speaking of speakers, a typout to SpeakerFreak95!
This is a fun recorder to show, it is such an interesting format. And it is so dang well made. Metal mechanics, built like a bloomin' tank!
