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

2 files changed, 54 insertions, 94 deletions

diff --git a/gschem/crossover.sch b/gschem/crossover.sch
index 36f33f6..d53e01f 100644
--- a/gschem/crossover.sch
+++ b/gschem/crossover.sch
@@ -356,30 +356,16 @@ device=RESISTOR
 T 55400 41900 5 10 1 1 0 0 1
 refdes=R418
 T 55400 41700 5 10 1 1 0 0 1
-value=22k
+value=100k
 T 55100 42400 5 10 0 1 0 0 1
 footprint=R025
 }
 N 55200 42600 55200 42400 4
-C 55600 40500 1 0 0 vcc-minus-1.sym
 C 54900 40500 1 0 0 vcc-minus-1.sym
 N 55200 41100 55200 41500 4
-C 55700 43200 1 180 0 resistor-variable-2.sym
-{
-T 55350 43700 5 10 1 1 180 0 1
-refdes=R419
-T 54900 42300 5 10 0 1 180 0 1
-device=VARIABLE_RESISTOR
-T 55000 43300 5 10 1 1 0 0 1
-value=100k?
-T 55700 43200 5 10 0 1 0 0 1
-footprint=BOURNS_3296w
-}
-N 55700 43100 55900 43100 4
-N 55900 43100 55900 41100 4
 N 55200 42500 57100 42500 4
-T 53800 41700 9 10 1 0 0 0 1
-taper resistor
+T 53500 41200 9 10 1 0 0 0 1
+TODO: determine attenuation
 C 55100 46300 1 270 0 resistor-2.sym
 {
 T 55450 45900 5 10 0 0 270 0 1
@@ -387,27 +373,13 @@ device=RESISTOR
 T 55400 45800 5 10 1 1 0 0 1
 refdes=R420
 T 55400 45600 5 10 1 1 0 0 1
-value=22k
+value=100k
 T 55100 46300 5 10 0 1 0 0 1
 footprint=R025
 }
 N 55200 46500 55200 46300 4
-C 55600 44400 1 0 0 vcc-minus-1.sym
 C 54900 44400 1 0 0 vcc-minus-1.sym
 N 55200 45000 55200 45400 4
-C 55700 47100 1 180 0 resistor-variable-2.sym
-{
-T 55350 47600 5 10 1 1 180 0 1
-refdes=R421
-T 54900 46200 5 10 0 1 180 0 1
-device=VARIABLE_RESISTOR
-T 55000 47200 5 10 1 1 0 0 1
-value=100k?
-T 55700 47100 5 10 0 1 0 0 1
-footprint=BOURNS_3296w
-}
-N 55700 47000 55900 47000 4
-N 55900 47000 55900 45000 4
 N 55200 46400 57100 46400 4
 C 60900 46500 1 180 0 input-2.sym
 {
@@ -447,7 +419,7 @@ value=10u
 T 53600 46800 5 10 0 1 0 0 1
 footprint=RCY100P
 }
-N 54500 47000 54800 47000 4
+N 54500 47000 54900 47000 4
 T 48600 43500 9 10 1 0 0 0 4
 When the cross-over is disabled, the two
 send outputs each carry the full signal.
@@ -786,3 +758,33 @@ footprint=CONNECTOR 1 1
 }
 N 52700 38300 52700 37400 4
 N 52700 35700 52700 36300 4
+C 55100 47400 1 270 0 resistor-2.sym
+{
+T 55450 47000 5 10 0 0 270 0 1
+device=RESISTOR
+T 55400 46900 5 10 1 1 0 0 1
+refdes=R421
+T 55400 46700 5 10 1 1 0 0 1
+value=100k
+T 55100 47400 5 10 0 1 0 0 1
+footprint=R025
+}
+N 54900 47000 54900 47900 4
+N 54900 47900 55200 47900 4
+N 55200 47900 55200 47400 4
+C 55100 43500 1 270 0 resistor-2.sym
+{
+T 55450 43100 5 10 0 0 270 0 1
+device=RESISTOR
+T 55400 43000 5 10 1 1 0 0 1
+refdes=R419
+T 55400 42800 5 10 1 1 0 0 1
+value=100k
+T 55100 43500 5 10 0 1 0 0 1
+footprint=R025
+}
+N 54800 43100 54800 44200 4
+N 54800 44200 55200 44200 4
+N 55200 44200 55200 43500 4
+T 47300 47700 9 10 1 0 0 0 1
+TODO: 40{1,2,3}-2 are connected. This can be done off-board.
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