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Lehmann BD139 BD140 Preamplifier Headphone Kit
Description:
- this is a kit,you need to solder it by yourself.pay me more 7USD for the completed board.
- Board size: 106MM * 148MM
- Operating voltage: AC 15V-0-15V AC12V-0-AC12V input a set of spare DC15V-0-15V
- Apply Impedance: 32 ohm -600 ohm
- Frequency Response: 20HZ-20KHZ
Features:
- Original Lehmann circuit, with double recovery fuse and
- With gain option and standby positive and negative power input
- With 2* 6.35mm headphone jack output
- With rar audio output (can be used as pr-amp)
- Only improves the components mounting hole, more flexible
- Filter: 10,000UF
- Audio output coupling capacitance, SIEMENS blue shell HIFI coupling
- CBB: Original Philips
- Sweden RIFA capacitors for Audio loop
- BD139 BD140 tube output
- OP AMP: 5532( can be changed yourself)
NOTE:
- Spaer parts, not assembled
- Not include the copper pillar or screws
Package list:
- 1 x Lehmann BD139 BD140 Preamplifier Headphone Kit
