2 PCS PASS ACA MINI Stereo 5W Single-Ended Class A FET+MOS Power Amplifier PCB

Description: 2 PCS PASS ACA MINI Stereo 5W Single-Ended Class A FET+MOS Power Amplifier PCBNOTE: Price is 2 PCS.Make cue points:1, the PCB input tube package is 2SK246, suitable for 2SK246, K30A, if using 2SK170\2SK366\2SK364 tube, it needs 1-3 foot swap (turn 180 degree installation)2, the input stage quiescent current is 4mA, the current JFET tube is relatively short, if you can not get the high IDSS input tube, please change the corresponding ground resistance (1K) to 1K5, the quiescent current is 3mA.Common JFET tube IDSS:● K246BL (BL) is greater than 5mA● K246GR is generally greater than 3.5mA● K30A (GR) is generally greater than 3.5mA● K170BL (BL) new products are rare, and polished products are more common.● K366BL, generally greater than 5mABL is generally greater than 5 mA and GR is generally greater than 3.5 mA.3, power output tube is recommended to use the paired tube, the quiescent current is 1A at 19VDC input voltage; due to the different design of the PASS on this version, the pressure drop of the two tubes is different, the upper arm pressure drop is 10V, the lower arm pressure drop It is 7.8V, so at the same current, the heat generated by the two tubes is different.4. Because of the large current, there is a certain amount of heat. When selecting the insulation sheet, the mica sheet is preferred. And install the heat sink.5, input coupling capacitor and output coupling capacitor have a great influence on the sound, and can select a capacitor with a little HIFI according to the individual hearing needs.Input voltage: DC 19V (transformer output voltage AC 15V rectification), Transformer power mono channel is not less than 20VA.Output power: 5W+5W (Single-Ended Class A)PCB Size: 75mm*50mmGain: 6.5 timeUser comment:PASS ACA is better than PASS ZEN, because the power is not large, about 6.5 times magnification, limited thrust, it is more suitable for headphone amplifier or desktop amplifier integrated machine, push the earphone or small speaker about 90dB, still have some fun and features.It is suitable for listening to saliva songs, vocals, and pop music. For those who like listening to string music, big symphony, it is not suitable. Package:1 Pair PASS ACA MINI Stereo 5W Single-Ended Class A FET+MOS Power Amplifier PCB Shippment: 1.Every parcel will be registered with tracking number. 2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions et. If the transportation time is not normal, please contact us

Price: 7.02 GBP

Location: Wu Han

End Time: 2025-02-08T09:08:53.000Z

Shipping Cost: 2.45 GBP