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

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Technical Details

Brand: Plessey

Model:707

Category:Mid High Fidelity

Application:Studio

Electronic:Solid State

Country of Manufacture:Australia

Release dates:1967 - 1973

Tracks:1/4 Rec/PB

Speeds: 7 1/2, 15

Max Reel Size("): 10.5"

Number of heads: 1 (PB)

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors: 3

Auto Reverse?:No

Voltage(s): 220-240v

Outputs: XLR, XLR Balanced, 1/4" Headphone

Frequency Response:10hz to 25khz

Wow and Flutter:better than 1

Signal-to-Noise Ratio:75

Sound quality rating:10 / 10

Long-term reliability rating: 10/ 10

Separate Transport/Preamp: For the few tape recorders that have the transport separated from the electronics, usually connected with an RCA

Additional Details

Description

These were designed by an Australian engineer Graham Thurkle, the machines are exceptional in all ways of performance, the record play version is the 700 and the 700b which had a separate head preamp mnounted behind the head block. These were extensively used by the ABC throughout Australia up until the late 70’s when they were retired.

The record version the 700B was a remarkable machine in the 80’s I performed some tests using a newly formulated EMI tape known internally as XP1000. The 700B erase current could be increased to the point that at 15ips it could melt the tape. Under test ignoring all standards and taking the tape to saturation you could get 86Db SNR unweighted from a machine at 15ips only just sub digital performance and it would do that at 20khz or anywhere else in the audio spectrum.

These can have new headblocks fitted and it is possible to make a stereo version, I am not aware that any were produced by Plessey in stereo

Additional Info

Reviews

Fantastic machine this is the replay version of the 700 and 700B. I currently have two of these , one in the rollaround cabinet with a rola 12" speaker in the bottom. the second in a rollaround rack which were used in ABC TV for tape replay. I also own 6 x Plessey 700A and 3 x Plessey 700B record play machines.

Sound Quality Rating: 10/10
Long-term Reliability Rating: 10/10
2022-06-28
Graham

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