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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 181

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Technical Details

Brand: Ampro

Model:731

Category:Vintage

Application:Consumer

Electronic:Tube

Country of Manufacture:United Kingdom

Release dates:1952 - 1955

Tracks:

Speeds: 3 3/4

Max Reel Size("): 7"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors:

Voltage(s): 110-120v

Frequency Response:3¾ ips: 50Hz - 6kHz

Wow and Flutter:less than 1%

Signal-to-Noise Ratio:42db

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details

Description

A single speed (3¾ ips), full-track mono recorder with a single motor and a 7″ reel capacity.
Two heads were provided, (record and playback), with a permanent magnet
erase head.
Twin neon lamps indicated recording levels with the left one flashing
for normal and the right one indicating overload.  This predominantly
American system was used up until the late fifties before the European
style “magic eye” and later VU meters took over in popularity.
A fairly simple tape-path was offered to the ‘pioneer’ recorder users
of the ’50s and older style radiogram-type knobs were used for operating all functions.
An interesting feature was the tape scale, stenciled onto the left hand
side top plate, to give the budding tape enthusiast an indication of how
much tape was left on the reel. Obviously this was from a time when there
was only two types of tape, 5″ reels and 7″ reels. (600ft &
1200ft respectively).

Additional Info

Rewind speed: 72 ips forward / 120 ips rewind / Audio output power: 3 watts / Weight: 37 lbs (16.8 kg) / single track mono

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