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Audio and Video Talk
The Vintage Audio Section
Quad 303 restoration
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<blockquote data-quote="mygoggie" data-source="post: 899480" data-attributes="member: 18916"><p>So a quick calculation using:</p><p></p><p>Resistor (in Ohms) = (Vp (power supply voltage in Volts) - Vn (neon lamp voltage in Volts))/I (neon lamp current in Amps)</p><p></p><p>gives me the following:</p><p>I = 0,3mA</p><p>Vn = 90VAC</p><p></p><p>This is your garden species variety neon lamp. So now let's find one of these matching the measured dimensions of the old one which are:</p><p>Diameter = 5,6mm (0.22")</p><p>Length = 18mm (0,708")</p><p></p><p>I see the standard size will be diameter of 0.244" and length 0.750" which is in the correct order.</p></blockquote><p></p>
[QUOTE="mygoggie, post: 899480, member: 18916"] So a quick calculation using: Resistor (in Ohms) = (Vp (power supply voltage in Volts) - Vn (neon lamp voltage in Volts))/I (neon lamp current in Amps) gives me the following: I = 0,3mA Vn = 90VAC This is your garden species variety neon lamp. So now let's find one of these matching the measured dimensions of the old one which are: Diameter = 5,6mm (0.22") Length = 18mm (0,708") I see the standard size will be diameter of 0.244" and length 0.750" which is in the correct order. [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
Quad 303 restoration
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