...h are prone to failure due to internal growth of tin whiskers. See the '''Repairs''' tab about replacing these with 2N3906s.
The sampling pulse, common to both channels, is generated by a [[152-115]] [[snap-off diode]]
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3 KB (400 words) - 16:37, 8 May 2024
{{Spec | Power | 110/115/120/220/230/240 V<sub>AC</sub> ±10%, selected via primary voltage selecto
...be.com/watch?v=I6ODi7qSpYg Jim Williams repairs Tom Osborne's Tektronix 465B oscilloscope] (YouTube)
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10 KB (1,178 words) - 07:40, 30 December 2023
{{Spec | Power | 110, 115, 120, 220, 230 or 240 V<sub>AC</sub> ±10%, 48-440 Hz, max. 100 W }}
* See [[475/Repairs]]
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7 KB (980 words) - 04:30, 11 March 2024
..., restored & nursed back to health by [[User:Matt|Matt]], additional minor repairs in my shop
...e 250 mm alligator ground lead - severe pulse distortion, rise time ~3 ns (115 MHz)!
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17 KB (2,214 words) - 05:12, 20 April 2024
*[[115]]
=Repairs/Maintenance=
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44 KB (4,384 words) - 05:27, 17 May 2024