ETC2 A-434S Audio transformer Datasheet

-EXPERIENCE electronics-
Audio Transformer Data Sheet
A-434 S
Audio transformer for 4 x EL 34, 4 x 6L6GC and similar tubes. Taps for second grid in ultra linear application.
Recommended voltage range of power supply
ca. 450...550 V
Frequency response
P = 100 W 20 Hz....20 kHz (-0.3 dB)
Power handling
>120 W
Primary inductivity
>81 H bei 100 mW
Stray inductivity
1.73 mH
Resistance of primary coil
90 Ω
Raa
1.5 kΩ
Pinning
Primary
Pin
l
plate 1
100 %
9
2nd grid 1 a
50 %
10
2nd grid 1 b
33 %
11
Center tap
0%
12
2nd grid 2 b
33 %
14
2nd grid 2 a
50 %
15
plate 2
100 %
16
Secondary
Pin
transfer ratio
0
1/2
l
4W
2/3
19.2
8W
5/6
13.6
16 W
7/8
9.6
l = points of same polarity
Dimensions
Length
Width
Height
Weight
ca. 1.9 kg
Mounting
bolts M 4
100 mm
85 mm
75 mm accross bobbin
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