Electronic DIY kit: Single Channel Hi-End Low Frequency Amplifier Unit

A three-tube, two-stage Hi-End low-frequency amplifier unit with direct connection between the stage..

3.88€

Electronic DIY kit: SRPP stereo low frequency amplifier on affordable tubes

A six-lamp, two-stage, low-frequency stereo amplifier built on low-cost and affordable 6N3P and 6P1P..

8.99€

Electronic DIY kit: Tube SRPP stereo low frequency amplifier for computer

A four-tube, two-stage stereo low-frequency amplifier is designed for high-quality reproduction of s..

8.99€

Electronic DIY kit: Tube SRPP Stereo Low Frequency Headphone Amplifier

High-quality, simple and reliable SRPP Low Frequency Amplifier for HeadphonesInputs - RCA, 3.5mm Jac..

5.99€

Electronic DIY kit: Class A low frequency amplifier with 3W output power

A simple and reliable two-stage low frequency amplifier for working with high-frequency tracts from ..

5.37€