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double checked everything R17 is listed as 47k but Image in build document says 22k !!?? R27 is listed as 7k5 build doc. pic is 7.9 K !?? My voltage is low on board want to make sure which resistors are right before replacing ic’s! regards Joe
Joe – in my experience with the SWAH v5, (I’ve built a couple), I find that 47K works best. Regardless what the image in the build doc sys, follow the BOM – or better yet, read all the detailed notes in the “Build Notes” and “Mod Ideas” sections.
In my SWAH v5 build document, R27 is 7K9 in all three places (BOM, schematic and build image).
Neither R17 nor R27 are going to affect the voltage supply. “VA” should be the supply voltage at +9v. “VB” should be one half of the supply voltage at +4.5v. And “VC” should be +5v.
I have read your mods and my voltages are off so other then IC’s thought I would ask. As far as 7.9k it says 7.5in build doc. So that’s weird. Thanks for input and your mods. Regards Joe
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