If I am not wrong,the great Morgan Jones, who I have read from back to front and back again several times espouses "Polypropylene HT Capacitors and Wire Wound Aluminum Cased Anode Loads", in his EL84 amplifiers (my favorites)
I have a deep respect for MJ but rocking horse poo looks common compared to the above. I have only the entire WWW to look in but i cant find either in the values that would seem desired for the stated purpose. What gives
I have a deep respect for MJ but rocking horse poo looks common compared to the above. I have only the entire WWW to look in but i cant find either in the values that would seem desired for the stated purpose. What gives
Polypropylene caps are common everywhere - just look for motor run. Not motor start by the way.
Wirewound resistors sound great. I prefer the sound of the vitreous enamel types e.g. Welwyn green types to the aluminium clad ones. Depends on the wattage, but I'd avoid aluminium clad if I had an alternative.
Wirewound resistors sound great. I prefer the sound of the vitreous enamel types e.g. Welwyn green types to the aluminium clad ones. Depends on the wattage, but I'd avoid aluminium clad if I had an alternative.
My vote for the capacitors. Save the motor runs for when you need high capacitance values. For that first small cap after the rectifier, or the ones he recommends around DC chokes, these can't be beat. They are shown in stock at Mouser's Australian store.
http://www.cde.com/catalogs/940C.pdf
http://www.cde.com/catalogs/940C.pdf
Note the operative word "bypassed"
The AC signal current in this instance flows through the bypass capacitor until Xc is appreciable compared to the cathode resistor.Note I'm more than likely to use fixed bias in a situation where this sort of cathode bias resistor might be used.
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