remove melody buffer (preamp is buffered); remove trim pots

1 files changed, 19 insertions, 61 deletions

diff --git a/gschem/tuner.sch b/gschem/tuner.sch
index f8839ea..a147ecb 100644
--- a/gschem/tuner.sch
+++ b/gschem/tuner.sch
@@ -60,36 +60,8 @@ footprint=R025
 }
 N 45600 43100 45600 44700 4
 N 45600 43100 45200 43100 4
-C 47100 46200 1 90 0 resistor-2.sym
-{
-T 46750 46600 5 10 0 0 90 0 1
-device=RESISTOR
-T 47200 46700 5 10 1 1 0 0 1
-refdes=R305
-T 47200 46500 5 10 1 1 0 0 1
-value=1M
-T 47100 46200 5 10 0 1 0 0 1
-footprint=R025
-}
-N 44000 44700 44000 48600 4
-N 47000 47100 47000 48600 4
-C 48000 49500 1 0 0 vcc-2.sym
-N 48200 49500 48200 49100 4
-C 48300 46200 1 90 0 resistor-2.sym
-{
-T 47950 46600 5 10 0 0 90 0 1
-device=RESISTOR
-T 48400 46700 5 10 1 1 0 0 1
-refdes=R307
-T 48400 46500 5 10 1 1 0 0 1
-value=4k7
-T 48300 46200 5 10 0 1 0 0 1
-footprint=R025
-}
-C 47900 45500 1 0 0 vcc-minus-1.sym
-N 48200 48100 48200 47100 4
-N 44000 48600 47700 48600 4
-N 48200 46200 48200 46100 4
+N 44000 44700 44000 48000 4
+N 44000 48000 48500 48000 4
 C 37200 36900 0 0 0 title-A2.sym
 C 48500 47800 1 0 0 capacitor-4.sym
 {
@@ -104,18 +76,6 @@ value=10u
 T 48500 47800 5 10 0 1 0 0 1
 footprint=RCY100P
 }
-N 48500 48000 48200 48000 4
-C 50600 48100 1 180 0 resistor-variable-2.sym
-{
-T 50250 48600 5 10 1 1 180 0 1
-refdes=R309
-T 49800 47200 5 10 0 1 180 0 1
-device=VARIABLE_RESISTOR
-T 49900 48200 5 10 1 1 0 0 1
-value=100k?
-T 50600 48100 5 10 0 1 0 0 1
-footprint=BOURNS_3296w
-}
 C 50000 47100 1 270 0 resistor-2.sym
 {
 T 50350 46700 5 10 0 0 270 0 1
@@ -123,7 +83,7 @@ device=RESISTOR
 T 50300 46600 5 10 1 1 0 0 1
 refdes=R310
 T 50300 46800 5 10 1 1 0 0 1
-value=22k
+value=100k
 T 50000 47100 5 10 0 1 0 0 1
 footprint=R025
 }
@@ -131,14 +91,9 @@ C 49800 45400 1 0 0 vcc-minus-1.sym
 N 50100 47100 50100 47500 4
 N 50100 46000 50100 46200 4
 N 49700 48000 49400 48000 4
-C 50600 45400 1 0 0 vcc-minus-1.sym
-N 50600 48000 50900 48000 4
-N 50900 48000 50900 46000 4
 N 50100 47300 53000 47300 4
-T 50300 46400 9 10 1 0 0 0 1
-taper resistor
-T 49400 49200 9 10 1 0 0 0 1
-trim pot to control send level
+T 47100 46500 9 10 1 0 0 0 1
+TODO: determine attenuation
 N 45200 44700 45600 44700 4
 C 53800 49300 1 90 0 stereo_jack-1.sym
 {
@@ -191,8 +146,6 @@ T 52200 44600 9 10 1 0 0 0 3
 This connector is used
 because I only need two pins
 on the board.
-C 46900 45500 1 0 0 gnd-1.sym
-N 47000 45800 47000 46200 4
 C 47700 43200 1 0 0 bc550.sym
 {
 T 48300 43700 5 10 0 0 0 0 1
@@ -233,15 +186,6 @@ C 46700 40300 1 0 0 gnd-1.sym
 N 46800 40600 46800 41100 4
 N 46800 42000 46800 43700 4
 N 45600 43700 47700 43700 4
-C 47700 48100 1 0 0 bc550.sym
-{
-T 48300 48600 5 10 0 0 0 0 1
-device=NPN_TRANSISTOR
-T 48300 48600 5 10 1 1 0 0 1
-refdes=Q302
-T 47700 48100 5 10 0 0 0 0 1
-footprint=TO92_CBE
-}
 C 48500 42300 1 0 0 capacitor-4.sym
 {
 T 48700 43400 5 10 0 0 0 0 1
@@ -271,3 +215,17 @@ N 49900 42400 49900 42500 4
 N 51400 41300 49900 41300 4
 T 50100 42200 9 10 1 0 0 0 1
 TODO: figure out by just how much the signal should be attenuated. 
+C 50000 48400 1 270 0 resistor-2.sym
+{
+T 50350 48000 5 10 0 0 270 0 1
+device=RESISTOR
+T 50300 47900 5 10 1 1 0 0 1
+refdes=R309
+T 50300 48100 5 10 1 1 0 0 1
+value=100k
+T 50000 48400 5 10 0 1 0 0 1
+footprint=R025
+}
+N 49700 48000 49700 49000 4
+N 49700 49000 50100 49000 4
+N 50100 49000 50100 48400 4