VDV-6040-PP (PAT4002)

Description:
The wide bandwidth toroidal push-pull output transformer 6040 is meant for extreme high quality tube amplifiers with a supply voltage in the environment of 350 V. Its primary impedance of 6 kOhm creates a low distortion load line. Ultra Linear taps of 40 % are present. The secondary impedance is standardized at 5 Ohm. The 40 Watt power bandwidth ranges from 25 Hz up to 125 kHz, without any internal resonances. Good tubes are EL34, KT66 to KT150 and 6550. The transformer is fully potted in an attractive aluminum black textured shell.

Specifications:
Application PP : EL34 and 6550 and KT88 to KT150
Power : 40 Watt @ 35 Hz
Impedance-prim. : 6 kΩ
Impedance-sec. : 5 Ω
UL-taps : 40 %
Frequency range : 1 Hz to 125 kHz (-3 dB)
Dimensions : round 125 mm dia, height 65 mm
Case : black textured aluminum
Weight : 2 kg

Download:
Download: 6040-PP datasheet-1 and 6040-PP datasheet-2
download the construction manual of the UL40-S2 in Dutch or German or English
Download application: chapters 10 & 11 & 12 of Modern High-End Valve Amplifiers