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nand

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  1. hmmmm... you think i`m arent allowed to connect the the 2 GND signals on the right side when i use the left side in series connection right ?
  2. if I Connect + with - the Cicuit ist shorted ? thx for all info now i will build 4 Supply...
  3. How i have to connect it ? how its right ? how i can get +-30V ? This ? OR This? _Supply1_ _Supply2_ _Supply1_ _Supply2_ | | | | | | | | | | | | | | | | | | | | | | | | |_+____- __| | __+__-__ | |_+____- __| | __-__+__| | |__________ | | | |____________| | | | | | | | | | | | | | |_Voltage?___|_Voltage?_| |_Voltage?____|_Voltage___|
  4. i know ... i will build 2 Supply and than how i have to connect the Outputs to get +-30V ?
  5. how i have to connect the Outputs to get +-30V ? do you have test it ?
  6. can I do an series connection with 2 Supply to get +-30V ?
  7. now i am confused: i will build the supply 1. I have an 24V Transformer witht 8,33A 2. I have the PCB(done) with the old circuit 3. I have to change parts in the circuit 4. I would use the TL081, BD140 in the old circuit 5. I take two 4700
  8. ok i hope i can find the MC34071 OPAMP i will use max 30V@2A how much Volt i can get with a 24V Transformer ? i change the OPAMP to MC34071 if i can find it. an change the 2n2219 to BD139 on a heatsink I build 4 Supplys in a Box i can put all the BD139 on a Heatsink will it work fine after changing Parts i hope the ripple is not to big can i use the shematic on the main side ? how shematic i have to use.. i have used this
  9. i have a 25V 8,33A Transformator 25*1,41 = 35,25V ??? Changes: C1 = to 4700
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