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(threeUHeight-panelOuterHeight)/2; mountSurfaceHeight = (panelOuterHeight-panelInnerHeight-railHeight*2)/2; panelInnerOffset = (panelOuterHeight-panelInnerHeight)/2; echo("railHeight: ", railHeight); offsetToMountHoleCenterX = hp - holeOffset; // 1 for cv glide atten (rv15 // glide atten (rv15 // 13 SPDT switches 1 rotary switch, 5+ positions 10 LEDs - one per step // 1 for run/stop (sw14) // 1 hp from side to center of package, Thorlabs photodiodes, https://www.thorlabs.de/drawings/374b6862eb3b5a04-9360B5F6-5056-2306-D912111C06C3F830/FDGA05-SpecSheet.pdf TO-92 leads molded, narrow, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot370-1_po.pdf SSOP56: plastic shrink small outline package; 24 leads; body width 4.4 mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot158-1_po.pdf VSO56: plastic very small outline package; 48 leads; body width 3.9 mm; lead pitch 0.635; (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot519-1_po.pdf SSOP16: plastic shrink small outline package; 28 leads; body width 3.9 mm; lead pitch 0.635; (see http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT231X.pdf SSOP20: plastic shrink.

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