FCC License Number: 0024330797
Authorized Commercial Operator and Test Station/Components Repair Technician
Item is new old stock / open box
and was stored in a climate-controlled environment. May have light surface
scratches on casing (not head face) due to move from storage location; does not
affect operation.
This component has passed
end-to-end testing, bench check, and is demagnetized in accordance with
manufacturer specifications. Performance test results are listed below and were
evaluated using original Nortronics component-specific spec sheets. Performance
determined to be within acceptable tolerance of original specifications-
typical age degradation considered.
(Reference materials/photos posted above)
Shipping and Handling
ESD (Electrostatic Discharge):
All necessary precautions and preventative measures have been taken while
handling and testing this electrostatic-sensitive component. Item ships with
proper ESD control measures and materials via USPS to ensure it maintains the
same bench check serviceable condition throughout delivery.
Component Type
Model Number: P-BQQ-7K
Series: Premium
Head Function: Record/Playback
Head Type: In-Line/Magnetic
Type of Circuit: Tubes/Transistors
BBR UPC: 0004
Test Results Snapshot
(@1kHz)
Measured Impedance Values per Channel/Track,
Respectively:
1/2/3/4 = 3.140kΩ/2.444kΩ/2.237kΩ/2.768kΩ
Detailed Test Results
Channel/Track 1:
Inductance (@1kHz): 500mH
Resistance, DC: 751Ω
Impedance (@1kHz): 3.140kΩ
Channel/Track 2:
Inductance (@1kHz): 390mH
Resistance, DC: 752Ω
Impedance (@1kHz): 2.444kΩ
Channel/Track 3:
Inductance (@1kHz): 356mH
Resistance, DC: 752Ω
Impedance (@1kHz): 2.237kΩ
Channel/Track 4:
Inductance (@1kHz): 441mH
Resistance, DC: 754Ω
Impedance (@1kHz): 2.768kΩ
Nortronics Tape Head Catalog
Description
The Nortronics Model P-BQQ and BQQ is an instrument quality,
4-channel in-line record/reproduce magnetic tape head for 1/4·inch tape. Its
fine laminated-core construction is designed for professional applications with
the ultimate in high-frequency performance. Deposited quartz gaps as fine as 50
micro-inches result in exceptionally clean “smear-free” gap edges. The
all-metal face greatly reduces oxide loading problems and the hyperbolic
contour promotes intimate tape-to-gap contact allowing reduced tape tension and
elimination of pressure pads. Typical Applications - Instrumentation recording
including carrier modulated types such as AM, FM or Pulse, as well as straight
digital and analog recording. Tracks of the P-BQQ/BQQ head are compatible with
the 4-track stereo system making it ideal for audio duplication, background
music and 4-channel in-line stereo.
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