I was given a Peavy Bandit from the mid 90s with an EU 220/240 volts 50/60 Hz 200 watts power supply and I wanted to convert it to 110.
My questions:
1. What is the right way of referring to the power supply? Is it a power supply or a transformer , or both.
2. Does the PCB downstream of the power supply care if the wall current is 110 or 220? I think there is a fuse that needs to be downsized as well.
3. How can i identify a plug and play unit (Basler 705-19356 is the 220/240 unit)
My questions:
1. What is the right way of referring to the power supply? Is it a power supply or a transformer , or both.
2. Does the PCB downstream of the power supply care if the wall current is 110 or 220? I think there is a fuse that needs to be downsized as well.
3. How can i identify a plug and play unit (Basler 705-19356 is the 220/240 unit)
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A power supply is a circuit. The big iron thing is a power transformer. The transformer is then one part of the supply.
In many modern amps there is something called a "switchmode power supply" or SMPS. That is informally also called a switching supply or just a switcher. However the Bandits do not use an SMPS. I just bring it up because the SMPS does not use a large iron transformer, and the SMPS is also often sold as a whole circuit on its own circuit board.
Your transformer based supply is what we call a linear supply.
The 705-19356 is the Peavey part number for that transformer.
There are quite a few Bandit variations, so I am not sure which you have. The Bandit 75 uses the same transformer, so it is close enough. On that, the 120v transformer is Peavey part number 705-18756. There are also changes to the fuse as you expected, and there are some capacitors not present in your unit that need to be added.
Here is the schematic. Even if the rest of the circuit is somehow different, the power transformer wiring should be the same.
Where are you and the amp located? It might be difficult to get a 120v transformer in Europe, and would take a long time even if available there.
COntact customer service at the factory or the parts department to find out if they still have the 705-18756 in stock. If you are in the USA, you can order it direct.
In many modern amps there is something called a "switchmode power supply" or SMPS. That is informally also called a switching supply or just a switcher. However the Bandits do not use an SMPS. I just bring it up because the SMPS does not use a large iron transformer, and the SMPS is also often sold as a whole circuit on its own circuit board.
Your transformer based supply is what we call a linear supply.
The 705-19356 is the Peavey part number for that transformer.
There are quite a few Bandit variations, so I am not sure which you have. The Bandit 75 uses the same transformer, so it is close enough. On that, the 120v transformer is Peavey part number 705-18756. There are also changes to the fuse as you expected, and there are some capacitors not present in your unit that need to be added.
Here is the schematic. Even if the rest of the circuit is somehow different, the power transformer wiring should be the same.
Where are you and the amp located? It might be difficult to get a 120v transformer in Europe, and would take a long time even if available there.
COntact customer service at the factory or the parts department to find out if they still have the 705-18756 in stock. If you are in the USA, you can order it direct.
Thanks for the info. I am located in California so the parts should be easy to get.
I could not open the schematic for the wiring diagram.
The amp is a Peavey Bandit 112.
I could not open the schematic for the wiring diagram.
The amp is a Peavey Bandit 112.
Peavey are extremely helpful. If you require a new transformer however, it will probably be cheaper and in my opinion better, to buy an auto transformer. 110 to 230V at 250V/A. Fuse the transformer primary with twice the fuse rating of the 230V amplifier and make sure your earth connection is used.
Sorry, I apparently left out the link, and I have not been on the internet since last week.
Try this link:
http://bmamps.com/Schematics/Peavey/Peavey_Bandit_75_(3-88)_Schematic.pdf
Does your amp say "112" on it? or are you using 112 as a description? What exact model is it called on the serial number plate?
get that info and your serial number and call PV customer service, they will happily send you the schematic set.
There are multiple Bandit models and all are 1x12 combos, plus there are multiple models called "Bandit 112".
Try this link:
http://bmamps.com/Schematics/Peavey/Peavey_Bandit_75_(3-88)_Schematic.pdf
Does your amp say "112" on it? or are you using 112 as a description? What exact model is it called on the serial number plate?
get that info and your serial number and call PV customer service, they will happily send you the schematic set.
There are multiple Bandit models and all are 1x12 combos, plus there are multiple models called "Bandit 112".
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