IWISTAO Vacuum Tube Preamplifier Finished Board DIY kit 12AU7 12AX7 6DJ8 CAT SL-1 Circuit Diagram DIY HIFI Audio
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Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).
IWISTAO Vacuum Tube Preamplifier Finished Board DIY kit CAT SL-1 Circuit Diagram
Model NO: WHF-PRATUBE-SL
The circuit is large dynamic, accurate in positioning, and mellow in the intermediate frequency. It can be called the most perfect design of the tube pre-amplifier.
1. Power supply voltage requirements:
1). High voltage can range from AC230V to 280,V and the current is greater than 50ma.
2). The filament voltage is 6.3v/2.5A.
2. Its magnification of the circuit is 15 times.
3. Tube configuration (not including any tubes)
1.In response to the requirement that some players may replace higher-level relays, the relays and selector switches of the sub-board are spare parts and are not shipped by welding.
2. we provide you some items and components for your DIY. If you have enough capabilities for circuit-reading, electronica components knowledge, assembling, soldering and problem-solving, you can buy them to enjoy DIY. If not, please don't buy them. We only provide limit technology support in this individual items itself.
1.Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).
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1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on our store.