th-vco1-build-terse.md

@@ -15,8 +15,19 @@ the short standoff pinheaders erroneously use a metric spacing. just use the 5-p
 - C3 should be styroflex or mica (it should be relatively accurate and stable regarding temperature changes).
 
 ## Mods
-- the oscillators frequency range can be tuned using a different value for C3 (step 27)
-- the pulsewidth can be adjusted using a different resistor value for R36 or fitted with a 200k trimmer for finer control as in pwm_scale_trim.jpg pwm_center_trim.jpg
+
+| No | Mod | Pic |  
+|:-:|---|---|  
+| 1 | Change the oscillators frequency range by using a different value for C3 (Step 27 in detailed manual). Increasing the value lowers the range. A Value of 2.4nF should create a range from ~0.5 Hz to 15kHz. Make sure to use a stable cap here (Styro, Mica, ...) to avoid drift. | Sorry no pic :frowning2:  |
+| 2 | ![pwm_center_trim_2](/uploads/5d198574ab3ff68287b7bc2ac572d6fd/pwm_center_trim_2.jpg) | ![pwm_center_trim](/uploads/9c1776ac115f2dd203985c55fb8eb71b/pwm_center_trim.jpg) |
+| 3 | ![pwm_scale_trim_2](/uploads/4788d7437a5f48f75363220df81920df/pwm_scale_trim_2.jpg) | ![pwm_scale_trim](/uploads/9ee992424a893fd4adcdb6934ab2c79e/pwm_scale_trim.jpg) |
+
+
+
+
+
+
+
 
 ## Calibration
 calibration is explained in the [calibration document](th-vco1-calibration)