Good job! If you don't mind, I'd like to ask you to clarify me a couple of things about Boogie. I was looking at the C+ schematic and wanted to copy it into Spice to see how far the emulation has come and also to study and there are a lot of things I don't understand. 1. What is the capacity of the capacitor above the power cable, the one before the ground switch and the one that's below the Direct Output, nothing is written there. 2. What LDRs can replace those in Boogie and how to connect them correctly? In all emulation programs, they are depicted as a rectangle with an LED on one side and a resistor on the other, two contacts come out of each, contact 1 receives the signal and contact 3 goes to a small voltage, something like 5-12 volts, 2 and 4 go to ground, but on the Boogie schematic it is depicted as a simple diode, the first contact receives the signal and the second is ground. I racked my brains thinking how to connect the one that's into the program. Sometimes it was even mirrored, like the one under the EQ IN / OUT and AUTO switch. But where the Graphic EQ ends, it is turned the other way. And why did they even use these? What is their purpose? I know there is a switch on the amplifier's case, but these things also work as switches. They do their job automatically, the voltage lighting up an LED and transmitting light to a resistor that transforms that light but my knowledge ends here. It's so complicated but very interesting, it would be nice to see a guide on how it all works. You were one of the reasons that motivated me to start reading about circuits.
1. If you ask about the round red component - that's not a capacitor. That's a MOV or a varistor - a protection component used in power supply circuits that is powered directly from AC mains. If you ask about the orange drop that is usually attached to the ground switch - that is called a "death cap". Very old, obsolete method to fight noisy mains supply. Useless and kinda dangerous in today's higher standards in mains and 3 prong, grounded installations. This is why it's removed from the amp in the vid. 2. You can use Chinese clones, or NSL32. LDRs are used as isolating devices much like relays are - isolating the control circuit from the load circuit. Great for routing signals without the risk of introducing noise, mechanical or electrical. LDRs have smooth ramp up/down so they don't cause pops in most circuits like a relay would. They are easy to control, draw less current than relays back then and don't require momentary mute circuits like complex amps with many relays. They are temperamental with time, so new designs don't use them. They are just a resistive photo cell and red LED inside a light isolated capsule. Look up my kinda humourous video on how to change a LED inside one. It will make more sense when you see one being opened and tested.
@@TheDannVal Thank you very much, I copied your answer to translate it later cause I'm not very good at long sentenses in English. Can I write to you on Instagram sometimes to talk about something related to this?
Great job man !
Thank you!
Good job! If you don't mind, I'd like to ask you to clarify me a couple of things about Boogie. I was looking at the C+ schematic and wanted to copy it into Spice to see how far the emulation has come and also to study and there are a lot of things I don't understand.
1. What is the capacity of the capacitor above the power cable, the one before the ground switch and the one that's below the Direct Output, nothing is written there.
2. What LDRs can replace those in Boogie and how to connect them correctly? In all emulation programs, they are depicted as a rectangle with an LED on one side and a resistor on the other, two contacts come out of each, contact 1 receives the signal and contact 3 goes to a small voltage, something like 5-12 volts, 2 and 4 go to ground, but on the Boogie schematic it is depicted as a simple diode, the first contact receives the signal and the second is ground. I racked my brains thinking how to connect the one that's into the program. Sometimes it was even mirrored, like the one under the EQ IN / OUT and AUTO switch. But where the Graphic EQ ends, it is turned the other way. And why did they even use these? What is their purpose? I know there is a switch on the amplifier's case, but these things also work as switches. They do their job automatically, the voltage lighting up an LED and transmitting light to a resistor that transforms that light but my knowledge ends here.
It's so complicated but very interesting, it would be nice to see a guide on how it all works. You were one of the reasons that motivated me to start reading about circuits.
1. If you ask about the round red component - that's not a capacitor. That's a MOV or a varistor - a protection component used in power supply circuits that is powered directly from AC mains.
If you ask about the orange drop that is usually attached to the ground switch - that is called a "death cap". Very old, obsolete method to fight noisy mains supply. Useless and kinda dangerous in today's higher standards in mains and 3 prong, grounded installations. This is why it's removed from the amp in the vid.
2. You can use Chinese clones, or NSL32. LDRs are used as isolating devices much like relays are - isolating the control circuit from the load circuit. Great for routing signals without the risk of introducing noise, mechanical or electrical. LDRs have smooth ramp up/down so they don't cause pops in most circuits like a relay would. They are easy to control, draw less current than relays back then and don't require momentary mute circuits like complex amps with many relays. They are temperamental with time, so new designs don't use them.
They are just a resistive photo cell and red LED inside a light isolated capsule. Look up my kinda humourous video on how to change a LED inside one. It will make more sense when you see one being opened and tested.
@@TheDannVal Thank you very much, I copied your answer to translate it later cause I'm not very good at long sentenses in English. Can I write to you on Instagram sometimes to talk about something related to this?