Rhythm/Lead PPIMV
Posted: Tue Nov 16, 2004 12:21 pm
Here is a circuit I designed that allows you to have 2 Post Phase Inverter Master Volumes(PPIMV), one for rhythm and one for lead. Then you can footswitch between the two without interrupting the bias to the power tubes.
The circuit requires:
2 470Kohm Resistors
2 500K Dual Ganged Pots
1 4Pole Double Throw Relay(available at Radio Shack)
1 Single Pole Double Throw(SPDT) Relay(Radio Shack)
1 Double Pole Double Throw(DPDT) Carling Footswitch w/enclosure
2 Dual Color LEDs/LED Mounting Rings
2 1K Resistors
2 Stereo Jacks
Anyone interested in performing this mod but needs assistance they can email me or I can post step by step instructions on the mod.
To download it to your computer so it's easier to see, right click on the "Download" link and select "Save Target As". Then select it to save to the desktop and click OK. Then you'll be able to view the file a lot better than you can here.
You'll also have to run the relay off of a DC supply of 12 Volts. Also, the footswitch cable will have to be a stereo cable as well.
Jon
The circuit requires:
2 470Kohm Resistors
2 500K Dual Ganged Pots
1 4Pole Double Throw Relay(available at Radio Shack)
1 Single Pole Double Throw(SPDT) Relay(Radio Shack)
1 Double Pole Double Throw(DPDT) Carling Footswitch w/enclosure
2 Dual Color LEDs/LED Mounting Rings
2 1K Resistors
2 Stereo Jacks
Anyone interested in performing this mod but needs assistance they can email me or I can post step by step instructions on the mod.
To download it to your computer so it's easier to see, right click on the "Download" link and select "Save Target As". Then select it to save to the desktop and click OK. Then you'll be able to view the file a lot better than you can here.
You'll also have to run the relay off of a DC supply of 12 Volts. Also, the footswitch cable will have to be a stereo cable as well.
Jon