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The 80 rectifier valve cathode connection.
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Return to top of page · Post #: 1 · Written at 5:41:39 PM on 7 August 2020.
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Location: Kanahooka, NSW
Member since 18 November 2016 Member #: 2012 Postcount: 712 |
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I am not sure which pin is the cathode looked in several data books . Pins 1 and 2 filiament. Does it matter if I use pin 1 or pin 2. |
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Return to top of page · Post #: 2 · Written at 5:49:10 PM on 7 August 2020.
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Location: Sydney, NSW
Member since 28 January 2011 Member #: 823 Postcount: 6761 |
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Shouldn't matter which side of the filament you use. |
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Return to top of page · Post #: 3 · Written at 5:54:56 PM on 7 August 2020.
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Location: Kanahooka, NSW
Member since 18 November 2016 Member #: 2012 Postcount: 712 |
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Thanks GTC. |
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Return to top of page · Post #: 4 · Written at 8:33:10 PM on 7 August 2020.
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Location: Wangaratta, VIC
Member since 21 February 2009 Member #: 438 Postcount: 5389 |
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Similar rules to 5Y3 apply re not running it sideways unless.....https://frank.pocnet.net/sheets/029/8/80.pdf |
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Return to top of page · Post #: 5 · Written at 9:29:12 PM on 7 August 2020.
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Location: Kanahooka, NSW
Member since 18 November 2016 Member #: 2012 Postcount: 712 |
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Thank you Marc. |
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Return to top of page · Post #: 6 · Written at 10:13:48 AM on 8 August 2020.
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Location: Melbourne, VIC
Member since 11 July 2012 Member #: 1179 Postcount: 56 |
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For suppressed ripple level in capacitor input filters, a heater winding with CT is deployed - the CT is linked to the first filter cap. |
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Return to top of page · Post #: 7 · Written at 11:41:30 AM on 8 August 2020.
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Location: Wangaratta, VIC
Member since 21 February 2009 Member #: 438 Postcount: 5389 |
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That will only work with heater tubes not a filament tube like #80 used in this set. One would have to modify. |
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Return to top of page · Post #: 8 · Written at 5:10:50 PM on 8 August 2020.
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Location: Melbourne, VIC
Member since 11 July 2012 Member #: 1179 Postcount: 56 |
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My comment was that, in general, if you had a 5V heater winding with a CT, then best to connect the heater to the 80 rectifier filament, and the CT to the first filter cap. If the heater winding doesn't have a CT then, as indicated, just connect filter cap to one side of 80 filament. |
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