TEL-PRO 12SL Tape Telephone Recorder – Rare Collectable Electronics
Step back into the 1990s with this vintage telephone recorder, the TEL-PRO 12SL – a prized piece of collectable electronics history. Designed for professional use, this auto-reverse mini VOX recorder offered an impressive 12 hours of unattended voice-activated recording, making it a groundbreaking tool at the time.
This retro unit includes its original hard display case, caller ID device, and modular telephone connectors. It records all conversations on a single line or specific extension using the handset cord adapter—perfect for historical reenactments or spy tech collections.
Additional features include:
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Voice activation with "Voice-Zoom" noise filtering
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Automatic tape reversal and shutoff
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Variable speed playback
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Dual-speed 6 or 12-hour recording
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Compatible with analog and digital phones (for historical use)
Collector’s Display Includes:
Functional TEL-PRO 12 recorder, caller ID unit, connector cable, user manual, and hard case.
⚠️ This is a collector’s item and may not be compatible with modern phone systems. It is sold as-is for display or memorabilia purposes. No tech support is available for functional use.
How does it work? Here is the original item description:
When one side of the D-140 cassette is full (6 hours recording), the unit automatically reverses, records an additional 6 hours and shuts off. Since the TEL-PRO 12 is VOICE-ACTIVATED, it only records when sound is detected, so tape could last for days or even weeks (depending on phone use, of course)! Simple modular connection to any analog telephone jack. System includes a handset cord connector for digital office phones also, allowing you to document your important business calls.
Records all extensions when connected to a single line (home type) phone system. Records all conversations on a single extension when connected to a digital extension phone (office type) using the handset cord adapter. This versatile unit may also be used for business conference recording or dictation. Internal microphone and a special "VOICE ZOOM" switch eliminates background noise. Unit operates on 2 "AA" batteries or AC adapter.
Plugs directly into standard modular phone jack. Voice-activated- records only when talk is present. Dual speed recording- 12 hour or 6 Hour per Tape. Automatic shut off at end of tape saves batteries. Battery indicator LED show battery charge. Variable speed playback for fast review of recordings. Excellent long play sound quality- 6 hours per side. Records all extensions on line. (single line use.) Records all lines on extension. (multi-line phones) "Voice-Zoom" switch enhances conference recording.
