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ANK Kit1 300B Construction Manual & User Manual
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ANK Kit1 300B Construction Manual & User Manual

2014 edition & kit1-10 c-core single ended monoblock power/pre amplifier 8.5w 300b
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Kit1 300B
2014 Edition & Kit1-10 C-Core
Single Ended Monoblock Power/Pre Amplifier 8.5W 300B
Construction Manual & User Guide
Version: September 2014
the authority in high end
A N K I T S
audio kits

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Summary of Contents for ANK Kit1 300B

  • Page 1 Kit1 300B 2014 Edition & Kit1-10 C-Core Single Ended Monoblock Power/Pre Amplifier 8.5W 300B Construction Manual & User Guide Version: September 2014 the authority in high end A N K I T S audio kits...

  • Page 2: Mechanical Preparation

    Mechanical Preparation Here is the latest version of the Kit1 300B Single Ended Chassis – It is made of 3mm aluminum which has been powder coated black – the chassis is ultra sturdy and aluminum is an ideal material for audio – If you ever need to drill the chassis – its easy to drill through! Here you can see the underside of the chassis –...
  • Page 3 Grommet Installation : Install the 5 smaller grommets in the 5 holes that are ½” wide Install the three larger grommets into the 3 larger holes :...
  • Page 4 8 grommets installed correctly in chassis! Lets install the 8 pin rectifier valve base – Find the KEY between pins 1 & 8 and make sure this points to the center of chassis – Feed the valve base in from under the chassis and secure with the mounting bracket and 2 black M3 10mm countersunk screws!
  • Page 5 Note the orientation of the KEY on the 8 pin valve base ! Well done 8 pin base installed! --------------------------------------------------------------------------------------------------------------------- Now lets install the 4 Pin valve bases in the center of the chassis – READ CAREFULLY BELOW before you start FILAMENT PINS IMPORTANT: Note that each 4 pin valve base has two small holes and 2 larger holes –...
  • Page 6 The next step after the valve bases have been installed is to install the two 10mm hex standoffs in the center of the underside of the chassis as shown in the above pic – this is the mounting for the tag strip that we will install later for all the hardwiring! Use the 2 x M3 10mm hex standoffs and 2 M3 6mm countersunk screws that screw in from the top side of the chassis!
  • Page 7 Filament stand offs and tag strips stand offs Now install the 4 - 10mm hex standoffs in the position as shown above and secure with the 6mm M3 countersunk screws – from the top of the chassis !
  • Page 8 TANG STRIPS Next task is to install the TANG strips – these strips are used to support the Front insert plate The two tang strips will require just 3 M3 x 10mm black countersunk screws and 3 M3 nuts to secure into position ! Position the TANG strip in the chassis as shown in the next picture and then secure one of the 3 holes from the chassis with the tang strip –...
  • Page 9 Position the Insert plate in the chassis as shown with the PEMS faced up ( see below) Used Black M3 CounterSunk screws and an M3 Nut to secure – but a good tip – DO Not tighten them – keep them loose so they have some play – only tighten once the insert plate is installed later on in the build!
  • Page 10 Tang strips installed! ----------------------------------------------------------------------...

  • Page 11: Mains Transformer Installation

    Mains Transformer Installation This section of the manual is a little tricky and requires a little patience – an extra set of hands would be useful although you can do it on your own if you follow the guidelines!! Itʼs a good idea to read through the next few pages a couple of times so you understand the process! Get the rubber strips out of Chassis Kit Bag and position on the Chassis as shown above...
  • Page 12 Now the Mains transformer – Look for the T-199 code on the bottom of the transformer and position beside chassis as shown! Position the Transformer on its side with the small set of wires ( Primary) on the LEFT !
  • Page 13 Now put the wires through the first grommet ! Now on the secondary divide the wires up into two sets – each set being approximately 9 or 10 wires on each side – divide them equally...
  • Page 14 Wire the first set through the grommet Position the wires in the other grommet!
  • Page 15 Now stand up the chassis and continue pulling the wires through the chassis – Might be a good time to have a second set of hands Patience Patience!!!
  • Page 16 see comments below!! Once the transformer is CLOSE to the chassis – insert the rubber strips or at least one of them back into position and see if you can get a screw into position to start securing the mains – Use the M4 Fender washer and screw on the top of the transformer and the serrated washer and nut on the bottom of the chassis - A good tip is to just get the nut on for now and later when the chassis is upside down with the Mains in position you can remove...
  • Page 17 Congratulations! Mains transformer installed….. Choke Installation In this section we will be installing the CHOKE transformer which is labelled CH-165 on the bottom –...
  • Page 18 Here you can see the CH-165 in the bottom right hand part of the pic above – Follow my tips for a painless install ! In the Choke hardware bag you will find M4 10mm PAN screws along with an M4 Standoff and M4 washers...
  • Page 19 We suggest you prop up the chassis as shown with some books to hold up the LEFT side of the chassis and then get a paper back book to support the CHOKE transformer in position as shown With the choke in position feed the 2 choke wires through the grommet as shown above...
  • Page 20 Now take the M4 10mm screw and washer and insert through the top of the choke – through the chassis ! Now on the inside of the chassis in view above use the M4 standoff to screw down onto the M4 screw that is protruding through – see next pic for clearer view...
  • Page 21 Here you can see the 4 Hex standoffs are securing the CHOKE transformer to the chassis Just to make sure that the screws are positioned correctly you can place the Power supply board over the screws temporarily to check that all is well! Well done CHOKE is now installed!!
  • Page 22 Output Transformers In this last main section of the Mechanical install we will add the two output transformers – They can be identified by the OP-300 designation on the bottom Position them beside the chassis below and note the wires – red and black facing each other...
  • Page 23 Now thread the wires through the grommets as shown above and below!
  • Page 24 Get the M4 10mm hardware along with nuts , washers and serratedʼs in order to install the output transformers – Feed the 10mm pan screw with flat washer through the transformer and into the chassis and then secure with serrated washer and M4 nut on the underside of the chassis ( facing you1) Transformers installed!
  • Page 25 This is the position that we will be working on now for the rest of the kit basically! All the transformers are installed and we can start working on the circuit boards , hardwiring of the 300B section , the filament board and the IEC rocker section – Let start with the IEC rocker section where we will use the primary windings of the Mains transformer!
  • Page 26 Kit1 Interwiring Diagrams •  1 Table of Contents •  2 – Overview of Kit1 •  3 4 5 – 300B Hardwiring Section •  7,8,9,10 PS board to Driver •  11 – 6SN7 filament wires •  12 – connect 5687 filaments in parallel • ...
  • Page 27 IEC Section Mains Mains Secondary Primary Chassis GND 5U4G Overview of Kit1 layout W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB 6SN7 w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 28 300B Hardwiring Section 1K8 Resistors, 220uf CAPS , 1K Grid resistors A B C D E G H I K L M N...
  • Page 29 300B Hardwiring Section From PS GNDS, FILAMENT WIRES Filament Board A B C D E G H I K L M N From Filament Board...
  • Page 30 70v DC 300B Hardwiring Section O/P tx red wires connected COMPLETE w/ Voltage Checks 425v for Power on with tubes installed A B C D E G H I K L M N 70v DC 425v...
  • Page 31 Mains Secondary Primary Chassis GND Hardwiring section details not shown for clarity 5U4G Overview of Kit1 layout W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB 6SN7 w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 32 5U5G Power Supply >> Driver Board Wiring – This is the W24 W23 W22 W21 HT voltage for the driver tubes W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 33 Mains Mains Secondary Primary 5U5G W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 34 Mains Mains Secondary Primary 5U5G W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 35 Mains Mains Secondary Primary 5U5G W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 36 Mains Mains Secondary Primary Brown wires from Mains Secondary 5U5G Filament Supply for the 6SN7 tube W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 37 Mains Mains Secondary Primary 5U5G Connect the filaments between the two 5687 W24 W23 W22 W21 tubes W28 W27 W26 W25 6SN7 GND W14-W20 PS PCB w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 38 Mains Mains Secondary Primary 5U5G 5687 Filament supply from the Mains W24 W23 W22 W21 W28 W27 W26 W25 6SN7 GND W14-W20 PS PCB w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 39 Mains Mains Secondary Primary Orange/White 5U5G High Voltage to to the Rectifier Tube W24 W23 W22 W21 W28 W27 W26 W25 6SN7 GND W14-W20 PS PCB w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 40 Mains Mains Secondary Primary Brown/White & Blue/White connect to 5U5G High Voltage to to the Rectifier Tube W24 W23 W22 W21 W28 W27 W26 W25 6SN7 GND W14-W20 PS PCB w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 41 Mains Mains Secondary Primary prepared Ground cable 5U5G High Voltage to to the Rectifier Tube W24 W23 W22 W21 W28 W27 W26 W25 6SN7 GND W14-W20 PS PCB w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 42 Primary 5U5G High Voltage and yellow filament supply for 5U4G W24 W23 W22 W21 along with the power supply board connection W28 W27 W26 W25 6SN7 GND W14-W20 PS PCB w8 w7 w6 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 43 5U5G Ground Connections 3 grounds used to connect from Power W24 W23 W22 W21 supply to tag strip and driver board W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 44 A B C D E F G H I J K 5U5G Ground Connections AC Filament supply to filament board W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 45 A B C D E F G H I J K 5U5G Ground Connections AC Filament supply to filament board W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 46 A B C D E F G H I J K 5U5G Output transformer primary connecting to the W24 W23 W22 W21 300B and the Power supply Ground W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 47 Mains Secondary Primary A B C D E F G H I J K Choke Wires 5U5G W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 48 Driver board output to 300B tubes – purple wire W24 W23 W22 W21 & Choke connections to the Power Supply Board W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 49 I J K 450v DC Choke Wires 5U5G PS VOLTAGE W24 W23 W22 W21 CHECKS W28 W27 W26 W25 GND W14-W20 PS PCB 375v DC w8 w7 w6 375v DC 6SN7 395v DC 395v DC Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 50 Mains Mains Secondary Primary Choke Wires 5U5G AN-A cable connecting from RCA to input driver board W24 W23 W22 W21 W28 W27 W26 W25 GND W14-W20 PS PCB w8 w7 w6 6SN7 Kit1 300B Single Ended T-199 Mains Transformer...
  • Page 51 120v operation Prepared Cable White Prepared wires Black cable twisted wire from twisted Mains from primary Mains primary...
  • Page 52 www.ankaudiokits.com email: audionotekits@rogers.com | sales: sales@ankaudiokits.com telephone: (USA) 613 822 7188 | international: 001 613 822 7188...