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It is used in the front end of the [[321]] (early models) and in the [[P500CF]] and [[P170CF]] probes. | It is used in the front end of the [[321]] (early models) and in the [[P500CF]] and [[P170CF]] probes. | ||
{{Part usage}} | |||
{| class="wikitable" | {| class="wikitable" | ||
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| [[P500CF]] || 157-0070-00 || All, Note3 | | [[P500CF]] || 157-0070-00 || All, Note3 | ||
|} | |} | ||
*Note1:Aged/checked tubes have a green dot painted on tip | * Note1:Aged/checked tubes have a green dot painted on tip | ||
*Note2:Aged/checked tubes have a yellow dot painted on tip | * Note2:Aged/checked tubes have a yellow dot painted on tip | ||
*Note3:Aged/checked tubes have a white dot painted on tip | * Note3:Aged/checked tubes have a white dot painted on tip | ||
*157-0046-00 has been replaced by 157-0070-00 | * 157-0046-00 has been replaced by 157-0070-00 | ||
{{Tube aging reference}} | {{Tube aging reference}} | ||
==Links== | ==Links== | ||
* [[Media:Sylvania 5718 data sheet.pdf|Sylvania 5718 Datasheet]] | |||
* [ | * [[Media:RCA 5718 data sheet.pdf|RCA 5718 Datasheet]] | ||
* [[tube:5718|5718 @ radiomuseum.org]] | * [[tube:5718|5718 @ radiomuseum.org]] | ||