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G8HQP Dave · 28th Sep 2010, 11:42 am

Should the 47uF between the phase splitter anodes be 47pF?

The input arrangements as shown are clearly wrong. 150V (presumably intended as PS grid bias?) is applied to the input signal, then isolated from the PS by two capacitors and a 1M resistor in series. The 1M should be in parallel with the signal, not series. It should attach to the PS grid, then feed the signal in via a capacitor.

28th Sep 2010, 11:42 am	#27
G8HQP Dave Rest in Peace Join Date: Sep 2008 Location: Solihull, West Midlands, UK. Posts: 4,872	Re: Stereo Amplifier Should the 47uF between the phase splitter anodes be 47pF? The input arrangements as shown are clearly wrong. 150V (presumably intended as PS grid bias?) is applied to the input signal, then isolated from the PS by two capacitors and a 1M resistor in series. The 1M should be in parallel with the signal, not series. It should attach to the PS grid, then feed the signal in via a capacitor.