Posted on Sunday, 29th June 2008 by Auw Jimmy
Due to parts shortage on some components, I can’t complete the assembly of my DIY project. So I just write down the idea on my scratch book. Here is the plan.
For the filament/heater supply, I plan to use LT1083 regulator. It is a good regulator for audio compared with the LM (78xx) or LM 3xx series. The first capacitor should be NOS Elna Silmic 2200uF (should be 4 or 5 in parallel). Then, a 1 Ohm/10W resistor should be place in series. Then another parallel filter with BlackGate F Series 680uF. At the end, LT1083 will do the final regulation to provide exact 6-6.3 VDC (depends on my divider resistor).
I use dual mono design for filament and also dual mono for high tension (B+). For each channel, I need around 1.6 Ampere filament power. I use custom power transformer rated at 7.5 VAC and 3 Ampere.
For high tension B+ voltage. I will have two versions.
Tags: B+ supply, DIY-Audio, heater supply, power supply, regulator, transformer, tube
Posted in DIY Audio, Personal | Comments (4)








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