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 QTA Systems

loudspeaker components


DIY Loudspeaker Inductors: Air Core, Ferrite & Bobbins:

     Three sizes of Glass reinforced polyamid coil formers suitable for the DIY constructor to wind custom inductors for that special Loudspeaker crossover project.
     Using 1.0mm copper wire the following inductance ranges can be achieved.
Type 1 Bobbin (0.1 - 0.39)mH,
Type 2 Bobbin (0.1 - 0.91)mH,
Type 3 Bobbin (0.47 - 2.2)mH.

Air Cored Coils
 Air Core Bobbins

*Air Core Inductor Bobbins.

Order Code Description: Air Core Bobbins Pack Size Price 1+ Price 6+ Pk Wt gms
ACFRMS1 Air Core Bobbin Height 17mm. Diam 40mm. 1 £0.88 /1 £0.84 /1 4
ACFRMS2 Air Core Bobbin Height 15mm. Diam 47mm. 1 £1.61 /1 £1.53 /1 7
ACFRMS3 Air Core Bobbin Height 25mm. Diam 58mm. 1 £1.18 /1 £1.12 /1 14
 

Air cored coils wound on hard glass-reinforced Polyamid formers.

Type 1 Bobbin (0.1 to 0.39)mH, (17 * 40)mm,
Type 2 Bobbin (0.1 to 0.68)mH, (15 * 47)mm,
Type 3 Bobbin (0.47 to 2.2)mH, (25 * 58)mm.
Centre boltdown with M4 Nylon bolt or fix with Silicone.
Tolerance +/- 5%.

Air Core Inductors
 Air Core Inductors 

* Air core coils using Type 1 Bobbin, (17 * 40)mm. +/- 5%. Price per piece.

Order Code Description: Air Core Bobbins T1 Pack Size Price 1+ Price 6+ Pk Wt gms
ACC110 0.10mH, 1.0mm Wire, DCR 0.12 Ohms 1 £4.82 /1 £4.58 /1 46
ACC115 0.15mH, 1.0mm Wire, DCR 0.16 Ohms 1 £5.12 /1 £4.86 /1 56
ACC122 0.22mH, 1.0mm Wire, DCR 0.20 Ohms 1 £5.92 /1 £5.62 /1 70
ACC133 0.33mH, 1.0mm Wire, DCR 0.25 Ohms 1 £6.21 /1 £5.90 /1 84
ACC139 0.39mH, 1.0mm Wire, DCR 0.29 Ohms 1 £6.37 /1 £6.05 /1 97
 
Air Core Inductors
 Air Core Inductors 

* Air core coils using Type 2 Bobbin, (15 * 47)mm. +/- 5%. Price per piece.

Order Code Description: Air Core Bobbins T2 Pack Size Price 1+ Price 6+ Pk Wt gms
ACC210 0.10mH, 1.0mm Wire, DCR 0.13 Ohms 1 £5.49 /1 £5.22 /1 49
ACC215 0.15mH, 1.0mm Wire, DCR 0.16 Ohms 1 £5.78 /1 £5.49 /1 58
ACC222 0.22mH, 1.0mm Wire, DCR 0.20 Ohms 1 £6.12 /1 £5.81 /1 71
ACC233 0.33mH, 1.0mm Wire, DCR 0.25 Ohms 1 £6.47 /1 £6.15 /1 87
ACC239 0.39mH, 1.0mm Wire, DCR 0.27 Ohms 1 £6.82 /1 £6.49 /1 96
ACC247 0.47mH, 1.0mm Wire, DCR 0.30 Ohms 1 £7.27 /1 £6.91 /1 106
ACC256 0.56mH, 1.0mm Wire, DCR 0.34 Ohms 1 £7.65 /1 £7.27 /1 117
ACC268 0.68mH, 1.0mm Wire, DCR 0.38 Ohms 1 £8.10 /1 £7.69 /1 131
 
Air Core Inductors
 Air Core Inductors 

* Air core coils, Type 3 Bobbin, (25 * 58)mm. +/-5% Price per piece.

Order Code Description: Air Core Bobbins T2 Pack Size Price 1+ Price 6+ Pk Wt gms
ACC347 0.47mH, 1.0mm Wire, DCR 0.30 Ohms 1 £6.51 /1 £6.18 /1 103
ACC356 0.56mH, 1.0mm Wire, DCR 0.34 Ohms 1 £6.97 /1 £6.62 /1 108
ACC368 0.68mH, 1.0mm Wire, DCR 0.38 Ohms 1 £7.44 /1 £7.07 /1 148
ACC375 0.75mH, 1.0mm Wire, DCR 0.41 Ohms 1 £7.79 /1 £7.40 /1 153
ACC382 0.82mH, 1.0mm Wire, DCR 0.45 Ohms 1 £8.14 /1 £7.73 /1 159
ACC391 0.91mH, 1.0mm Wire, DCR 0.49 Ohms 1 £8.60 /1 £8.17 /1 169
ACC310 1.00mH, 1.0mm Wire, DCR 0.51 Ohms 1 £9.05 /1 £8.60 /1 179
ACC312 1.20mH, 1.0mm Wire, DCR 0.60 Ohms 1 £9.99 /1 £9.49 /1 197
ACC315 1.50mH, 1.0mm Wire, DCR 0.64 Ohms 1 £10.92 /1 £10.37 /1 223
ACC318 1.80mH, 1.0mm Wire, DCR 0.71 Ohms 1 £11.41 /1 £10.84 /1 247
ACC322 2.20mH, 1.0mm Wire, DCR 0.81 Ohms 1 £11.88 /1 £11.29 /1 277
 

Ferrite Core Bobbins for Loudspeaker Crossovers.

   Four sizes of Ferrite Bobbins suitable for winding custom value Inductors as used in loudspeaker crossovers. Designated as Type A through to D.
A 'guide' to usage is as follows:-
Type A: FBA1823 Small value Inductors for Tweeter frequency modifications / tweaks.
Type B: FBB2728 Low power Bass and Tweeter crossovers to 50w rms max. system power.
Type C: FBC2535 Medium power Bass and Tweeter crossovers to 80w rms max. system power.
Type D: FBD3040 Medium power Bass and Tweeter crossovers to 100w rms max. system power.

Ferrite Bobbin Range
   Ferrite Core Bobbins 

* Ferrite Bobbins. H=Ht, OD = Diam., CD=Core Diam., CH=Core Ht. All Dims in mm

Order Code Description: Ferrite Bobbins Pack Size Price 1+ Price 6+ Pk Wt gms
FBA1823 H = 18, OD = 23, CD = 13, CH = 12, 1 £0.93 /1 £0.88 /1 16
FBB2728 H = 27, OD = 28, CD = 17, CH = 18, 1 £1.82 /1 £1.73 /1 41
FBC2535 H = 25, OD = 35, CD = 20, CH = 17, 1 £2.35 /1 £2.23 /1 56
FBD3040 H = 30, OD = 40, CD = 20, CH = 21, 1 £2.42 /1 £2.30 /1 75
 

A range of Ferrite Cored Inductors for Loudspeakers.

Ferrite core Inductors
 Ferrite Core Inductors 

* Ferrite Coils for Loudspeaker Crossovers , Core Type FBC. +/-5%. Price per piece.

Order Code Description: Ferrite Bobbins Pack Size Price 1+ Price 6+ Pk Wt gms
FBCC47 0.47mH, 0.8mm Wire, DCR 0.14 Ohms 1 £5.99 /1 £5.69 /1 ***
FBCC56 0.56mH, 0.8mm Wire, DCR 0.16 Ohms 1 £6.06 /1 £5.76 /1 ***
FBCC68 0.68mH, 0.8mm Wire, DCR 0.17 Ohms 1 £6.09 /1 £5.78 /1 ***
FBCC75 0.75mH, 0.8mm Wire, DCR 0.18 Ohms 1 £6.12 /1 £5.81 /1 ***
FBCC82 0.82mH, 0.8mm Wire, DCR 0.19 Ohms 1 £6.14 /1 £5.83 /1 ***
FBCC91 0.91mH, 0.8mm Wire, DCR 0.21 Ohms 1 £6.17 /1 £5.86 /1 ***
FBCC10 1.00mH, 0.8mm Wire, DCR 0.22 Ohms 1 £6.25 /1 £5.94 /1 ***
FBCC12 1.20mH, 0.8mm Wire, DCR 0.24 Ohms 1 £6.47 /1 £6.15 /1 ***
FBCC15 1.50mH, 0.8mm Wire, DCR 0.27 Ohms 1 £6.51 /1 £6.18 /1 ***
FBCC18 1.80mH, 0.8mm Wire, DCR 0.31 Ohms 1 £6.66 /1 £6.33 /1 ***
FBCC22 2.20mH, 0.8mm Wire, DCR 0.35 Ohms 1 £6.80 /1 £6.46 /1 ***
FBCC25 2.50mH, 0.8mm Wire, DCR 0.38 Ohms 1 £7.00 /1 £6.65 /1 ***
 

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All Prices include UK VAT @ 20%.   See buy it for further information.