Hi, apologies if this has been asked before, to model capacitors in series I assume you model one capacitor at half the value. For example two 220uF caps in series would be modelled as one 110uf Cap. For the resistors around each cap for current flow I assume you disregard as they are only there for the series connected caps.

Also, has anyone modeled the Audion Edison 60 amp running?EL34 and 6H1N valves as I'm have a few power supply problems mainly due to smoothing capacitor voltage and I think noise induced by failing caps (two 220uf 250v in series) at the EL34 and then single 220uf 450v for the 6H1N. I'm running E88C instead of the 6H1N's. I've pasted in one of lefthand channel including power supply

Paul

Hi Paul,

Yes, just use half the value for the capacitor and you'll have the right answer. Any ESR (Equivalent Series Resistance) in the cap should be doubled.

Regards,
Duncan

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Hi Paul,

I would say that the 1mA or so of current through the balancing resistors is insignificant. You could use a 100uF 500v capacitor instead, but it would probably cost more than the two 250v ones.

The 6N1P is very different from the 6922, apart from having the same pinout. It has much higher anode impedance and likes a higher voltage. It looks more like a higher-gain 6CG7 substitute to me, but does not sound anything like as good. I'd stick with the 6922/E88CC.

Edit: You will need to check that the 6922 can provide enough voltage swing to drive the EL34 without distorting.