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545: Difference between revisions
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The Type 545B differs significantly from the 545 and 545A. | The Type 545B differs significantly from the 545 and 545A. | ||
It has a partly solid-state, non-distributed vertical amp, and uses the [[154-0478-00]] CRT which is also used in the [[544]], [[546]], and [[547]]. Improvements in CRT design, including reduced deflection plate capacitance and increased sensitivity increased the vertical scale in the 545B from 4 to 6 divisions. The improved CRT also uses a ceramic envelope, with flat glass faceplate that has internal graticule markings, eliminating parallax errors. | It has a partly solid-state, non-distributed vertical amp, and uses the [[154-0478-00]] CRT which is also used in the [[544]], [[546]], and [[547]]. Improvements in CRT design, including reduced deflection plate capacitance and increased sensitivity increased the vertical scale in the 545B from 4 to 6 divisions. The improved CRT also uses a ceramic envelope, with flat glass faceplate that has internal graticule markings, eliminating parallax errors. | ||
Ken Chorney says: | |||
<blockquote> | |||
Just wanted to add an alternative supplier for replacement fan mounts for the Tektronix 545 oscilloscope fan. | |||
Digi-Key currently stocks two part numbers which fit and work perfectly: RPC1597-ND and EAR1345-ND. | |||
Both are 1/2" length (same as original) and both have 8-32 male threaded ends (same as original). | |||
Both are slightly smaller in diameter (0.4" vs. the 0.5" originals) but this does not affect their fit at all and likely does not affect their function appreciably. | |||
I have installed three of the RPC1597-ND standoffs in my 545 and they fit and work perfectly. | |||
</blockquote> | |||
==Links== | ==Links== | ||