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The one that started the revolution; originally designed on June 28th, 1992 by Michael S. LaFevre, the First Series "030" is designed for use in sophisticated low-to-medium power single-ended circuits.  The FS-030 is especially suited for use with the W.E. 300B valve.  Each 030 is entirely handcrafted and features the finest audiophile-grade materials throughout. The FS-030 is equipped with a very high quality , mil-spec, Teflon insulated stranded copper hookup wire.  To realize the full performance capabilities of this extremely high quality transformer, please allow approximately 100 hours of music playing time for break-in.  Then remember you are listening to something that changed the audio landscape.


PRICE (MSRP): $360 Each


This is the first installment of MagneQuest's Single-Ended, air gapped series of output transformer specs online. It is fitting we start with the venerable FS-030, possibly our most famous example of SE air-gapped iron. We will be adding all of our products here with specs, info, and mounting diagrams, as well as tried and true schematics that have brought out the best in our iron, not to mention the music!

These Specifications are subject to change with ongoing product development.

FS-030 Specifications
Primary Impedance
3,000 ohms
Maximum Plate Voltage
1000 WVDC
Primary Inductance
34 H
DC Plate Current
Output Power up to 40 watts
Frequency Response 20-20KHz +/- 1dB
Lamination Materials M4, M6

Hookup Wire Color Codes
Primary Red is B+ / Blue to plate
Secondary
4 ohms
Blue to yellow
White to Brown
Green to Black


9 ohms
White to Yellow
Blue to Green to Brown

16 ohms
Blue to Yellow
Green to Brown
Speaker Connect white to positive (+) / Connect black to negative ( - )

FS-030 Dimensions
Overall Depth (OD)
4 5/8"
Overall Width (OW)
3 25/32"
Mounting Depth (MD)
3.5625"
Mounting Width (MW)
3.00"
Mounting Hole (MH)
* Size 8 hardware
Height (H) 4 1/2"
Weight 11 lbs.
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FS-030 50hz Inductance-Current Measurements
I (madc)
L (hy)
VRMS
POWER
60
34
10
.033 watts
80
31.5
10
.033 watts
90
30
10
.033 watts
100
27.3
10
.033 watts
 
60
37.5
50
.83 watts
80
35.8
50
.83 watts
90
34
50
.83 watts
100
32.2
50
.83 watts
 
60
41
100
3.33 watts
80
38.7
100
3.33 watts
90
37.5
100
3.33 watts
100
34.5
100
3.33 watts
 
90
39
212
15 watts
100
36.5
212
15 watts


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