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PostPosted: Mon Sep 22, 2014 2:51 am 
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Joined: Fri Dec 10, 2010 9:01 am
Posts: 1019
Location: Doncaster, S Yorkshire, UK
I also posted this at Madbean, but thought I would also put it here for the guys who don't frequent his forum.

Hey Guys,

I've shared a PCB on OSH park for my 'Open Range' booster PCB.

See here: https://www.oshpark.com/shared_projects/SYXHnoDu
Image

Based on the Rangemaster, you can build a variety of Rangemaster based circuits (Naga Viper, Red Rooster etc.)

I have successfully built a Naga using the PCB. It's a great circuit and works really well with JFET overdrives.

See schematic (including notes) attached below.

PCB/General notes:

* I=Input, O=Output, V=+9V in, G = GND.

* Make sure to note your transistor pinout! (the silkscreen shows orientation for 2N3904. 2N2222A is mounted 180 degrees to silk screen).

* 10mm and 5mm spacing used on caps so you can use a variety of cap types.

* Bias pad allows you to measure bias voltage to collector if using a bias trim pot (D*A*M recommend biasing Germanium. versions to 6.66V)

* +V and GND pads are also at top of the PCB if using top mounted DC in jack.

Please note:
For non commercial use only!

The PCB is verified; I have built one up myself.

If you want -9V operation, not to mention the support and backup when building a Rangemaster clone, then purchase Madbean's Rangemaster PCB!


Attachments:
Open_Range_Booster.jpg
Open_Range_Booster.jpg [ 169.3 KiB | Viewed 1505 times ]

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