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Audio and Video Talk
Valves / Vacuum Tubes
EL86 Valve Designs
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<blockquote data-quote="Steerpike" data-source="post: 852432" data-attributes="member: 807"><p>I have two such amplifiers.</p><p>Philips created the EL86 specifically for their transformerless amplifiers. They can deliver a high anode current with a lowish anode voltage, and most importantly have a very high heater-cathode breakdown voltage. The last feature allowed the EL86 to be used in what they called the series balanced output", essentially a direct-coupled push-pull output stage, much like is done in transistor amps using two NPN transistors.</p><p></p><p>With the Phillips 800Ω loudspeakers, they make excellent amplifiers - with a 7 Hz to 50 kHz, +/-0,5 dB frequency response. That is quite spectacular linearity from a valve power amp.</p></blockquote><p></p>
[QUOTE="Steerpike, post: 852432, member: 807"] I have two such amplifiers. Philips created the EL86 specifically for their transformerless amplifiers. They can deliver a high anode current with a lowish anode voltage, and most importantly have a very high heater-cathode breakdown voltage. The last feature allowed the EL86 to be used in what they called the series balanced output", essentially a direct-coupled push-pull output stage, much like is done in transistor amps using two NPN transistors. With the Phillips 800Ω loudspeakers, they make excellent amplifiers - with a 7 Hz to 50 kHz, +/-0,5 dB frequency response. That is quite spectacular linearity from a valve power amp. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
EL86 Valve Designs
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