| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | 3 mounting holes: M2x0.4 | rekado | 2013-01-08 | 1 | -10/+7 |
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| * | increase mount hole diameter | rekado | 2013-01-02 | 1 | -942/+940 |
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| * | reduce gain of melody preamp? | rekado | 2013-01-02 | 1 | -0/+2 |
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| * | move cap away from drill hole | rekado | 2013-01-02 | 1 | -19/+20 |
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| * | remove out pins to -Vcc from board | rekado | 2013-01-01 | 2 | -77/+88 |
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| * | remove outdated comment | rekado | 2013-01-01 | 1 | -3/+1 |
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| * | increase route to pin clearance | rekado | 2012-12-31 | 1 | -7/+7 |
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| * | simplify routing of melody return cap | rekado | 2012-12-31 | 1 | -35/+28 |
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| * | redesign | rekado | 2012-12-29 | 1 | -970/+1103 |
| | | | | | | | | - less space between resistors - removed trim pots - removed one signal buffer - routed Vcc through transistor pins (maybe change that later) | ||||
| * | bypass contacts are wired on the switch, off-board | rekado | 2012-12-29 | 1 | -14/+70 |
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| * | remove melody buffer (preamp is buffered); remove trim pots | rekado | 2012-12-29 | 2 | -94/+54 |
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| * | correct name | rekado | 2012-12-28 | 1 | -1/+1 |
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| * | connect only one of the jack switches | rekado | 2012-12-28 | 2 | -22/+21 |
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| * | reduce gain/distortion | rekado | 2012-12-27 | 1 | -1/+1 |
| | | | | | | there still is some distortion which could possibly be eliminated by increasing the resistor some more. | ||||
| * | don't roll off low frequencies in bass preamp | rekado | 2012-12-27 | 1 | -1/+1 |
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| * | pins to connect offboard blend pot | rekado | 2012-12-27 | 1 | -1/+21 |
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| * | put inputs on -Vcc when nothing is connected | rekado | 2012-12-27 | 1 | -3/+9 |
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| * | improve coupling at mixer | rekado | 2012-12-26 | 1 | -20/+66 |
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| * | add coupling caps to return; remove from mixer | rekado | 2012-12-26 | 1 | -148/+190 |
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| * | update all coupling caps to 10uF | rekado | 2012-12-26 | 4 | -18/+18 |
| | | | | | | this is to ensure that the voltage across the cap is low at all frequencies we care about. | ||||
| * | clean up middle section | rekado | 2012-12-26 | 1 | -535/+535 |
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| * | remove coupling caps | rekado | 2012-12-26 | 1 | -123/+122 |
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| * | connect reference voltage via resistor; reduce cap value | rekado | 2012-12-23 | 2 | -70/+132 |
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| * | replace power filtering resistor with inductor | rekado | 2012-12-02 | 2 | -30/+32 |
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| * | replace another JFET with NPN transistor | rekado | 2012-11-26 | 2 | -103/+98 |
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| * | replace JFET with NPN transistor | rekado | 2012-11-26 | 2 | -101/+100 |
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| * | place and connect transistor in tuner mixer | rekado | 2012-11-26 | 1 | -271/+273 |
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| * | add NPN transistor to make mixer active | rekado | 2012-11-26 | 2 | -156/+247 |
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| * | add transistor after bass blend pots | rekado | 2012-11-25 | 4 | -262/+466 |
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| * | update board to latest schematic changes | rekado | 2012-11-23 | 1 | -62/+85 |
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| * | reminders to add buffers/active mixers | rekado | 2012-11-23 | 2 | -4/+7 |
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| * | add shunt resistor to output | rekado | 2012-11-23 | 1 | -8/+17 |
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| * | update board | rekado | 2012-11-22 | 1 | -1016/+834 |
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| * | add jumper to connect Vcc nets | rekado | 2012-11-22 | 1 | -1/+14 |
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| * | move power rails filtering to power supply | rekado | 2012-11-22 | 2 | -180/+135 |
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| * | rename power connector to make it appear on PCB | rekado | 2012-11-22 | 1 | -3/+3 |
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| * | more biasing with reference voltage | rekado | 2012-11-22 | 1 | -60/+8 |
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| * | adjust value and size of support caps | rekado | 2012-11-22 | 1 | -4/+4 |
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| * | power supply filtering | rekado | 2012-11-22 | 1 | -14/+43 |
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| * | use this expensive voltage reference instead of a voltage divider | rekado | 2012-11-21 | 3 | -108/+28 |
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| * | first complete layout draft | rekado | 2012-11-20 | 1 | -793/+475 |
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| * | remove DI box | rekado | 2012-11-20 | 1 | -456/+130 |
| | | | | | | | | | I don't really need a DI box all the time. It complicates the circuit, draws more power, and requires more space. An external DI box can be connected to the mono output for the same result. | ||||
| * | update board | rekado | 2012-11-19 | 1 | -710/+720 |
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| * | update board | rekado | 2012-11-19 | 1 | -824/+821 |
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| * | add pin to bass blend pot | rekado | 2012-11-19 | 1 | -2/+11 |
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| * | ignore more files | rekado | 2012-11-19 | 1 | -0/+6 |
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| * | remove outdated notice | rekado | 2012-11-19 | 1 | -4/+0 |
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| * | hide footprint attribute | rekado | 2012-11-19 | 1 | -1/+1 |
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| * | add virtual ground IC | rekado | 2012-11-19 | 2 | -0/+95 |
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| * | replace tuner trim pot with fixed resistor | rekado | 2012-11-19 | 1 | -45/+16 |
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index : hardware/stick-preamp | |
| This is a dual channel preamp in the making. I intend to use it with my [Chapman Stick](http://stick.com). You will need the [gEDA programs](http://www.geda-project.org) to view and edit these files. The [PCB editor](http://pcb.geda-project.org) is required to edit the board. | Fcgiwrap Daemon |
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