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File:17 TQD56 Trimmer A 20240212.jpg: Difference between revisions
File:17 TQD56 Trimmer A 20240212.jpg (view source)
Revision as of 13:28, 12 February 2024
, 12 February→Summary
(* Warning! * Do not touch or bend the two red wires with open ends that seems oddly forgotten. * They are part of a trim capacitor that are used to compensate for the Time Base Amplifiers frequency response. One pair at the upper board and one pair at the lower board. If you change the tube to an other manufacturer, it may be needed to adjust (bend) a little. Nothing is mentioned in the D55A manual what I could find.) |
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* Do not touch or bend the two red wires with open ends that seems oddly forgotten. | * Do not touch or bend the two red wires with open ends that seems oddly forgotten. | ||
* They are part of a trim capacitor that are used to compensate for the Time Base Amplifiers frequency response. One pair at the upper board and one pair at the lower board. If you change the tube to an other manufacturer, it may be needed to adjust (bend) a little. Nothing is mentioned in the D55A manual what I could find. | * They are part of a trim capacitor that are used to compensate for the Time Base Amplifiers frequency response. One pair at the upper board and one pair at the lower board. If you change the tube to an other manufacturer, it may be needed to adjust (bend) a little. Nothing is mentioned in the D55A manual what I could find. | ||
* Here is a good link: https://www.w8ji.com/neutralizing__amplifier.htm | |||