Adjustable Regulated Linear Power Supply Board for Tube Bile Preamps
Finished size approx: 153mmX113mmX35mm.
This circuit we did not provide wiring diagram, only provide component list.
If you buy the PCB, you can install it according to the component number and it will work normally.
Before the finished product is sent out, the high voltage of the screen pole is adjusted to about 280V output, and the low voltage of the filament is adjusted to about 6.3V output, which is suitable for the Marantz 7 or 6N11 and other gall bladder preamplifier.
This board output screen pole high voltage can make the value about +150-350V range adjustment, need lower (such as 50V-150V) please follow the instructions to change the value of components.
Filament low voltage can make the value of about +1.5-12.6V range of adjustment, need to be higher, please contact us.
High and low voltage start-up are slowly stacked up, i.e., soft start, so that the impact on the gall bladder less.
Special note to newbies, this AC input place is to add a transformer, not direct utility ！！！！
Our long time test conditions are input AC260V, output DC280V, current 50mA.
This current is enough for 99% of the bile preamp, of course, the current is too large can also refer to the original machine, with 2 pieces of dual-channel separate power supply.
1pc Adjustable Regulated Linear Power Supply Board for Tube Bile Preamps
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Returns & Replacements & Repair:
We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways.
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