Philips B6X12A valve radio

Philips B6X12A valve radio
Wednesday 15 August 2018Posted inElectronicsTags: , , , , , , No Comments
Intro This is my postwar Philips B6X12A valve radio from 1962. The amplifier is designed in such a way you bi-amplify effect.Bi-amplify is just separating your high tones from your low tones and running them through their own separate amplifier. Specifications: Country of origin: The Netherlands Build-year: 1961-1962 Valves: 10…

12AU7-6CG7 Headphone amplifier

12AU7-6CG7 Headphone amplifier
Monday 26 December 2011Posted inElectronicsTags: , , , , , , , No Comments
About This is my DIY build headset class-A tube amplifier that uses an OTL (Output Transformer Less) and MU follower design. The amplification is around 25dB with the 6CG7 valves, but you can also 6FQ7 for a little higher amplification. The downside of this is however that 6FQ7 doesn't have…