1964 Ampex F44 'Fine Line'
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The F-44 Fine Line was only available for about 2 years (1964-65) and was the last of the consumer Ampexes utilising vacuum tubes.

The big improvement in the F-44 was the use of a hysteresis motor in place of the induction motors used in older models. Also note dual meters instead of switchable meter on the earlier 960/1260 series.

This was a four-track, valve powered portable professional stereo recorder with two speeds (7½ & 3¾ ips) and a frequency response of 50Hz to 15kHz 2dB.

Available as a rack-mountable unit (F4452 - UK 240) or mounted in a case (F4460 - 250) and as a complete stand-alone tape recorder with speakers and audio amplifiers (F4470).

More images and an owner's manual on the CD-ROM.

Specifications at a glance
F44 'Fine Line'
Price when new (in the UK)
240 - 280
Track system
quarter-track stereo
Maximum reel size
Tape speeds
7½ and 3¾ ips
Frequency response (all 3 dB)
7½ ips: 50Hz - 15kHz
Wow & flutter
0.15% at 7½ ips
Audio output power
1.5 watts per channel (F4470)
F4452: 13 x 15 x 7½"  (330 x 381 x 190 mm)
F4460: 17½ x 15 x 9½" (444.5 x 381 x 241 mm)
F4452: 28 lbs (12.7 kg);   
F4460: 36 lbs (16.4 kg)
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