1A 6.3V LM317 Low Noise Adjust Regulated Power Supply PCB Soft Start F Tube amp

Description

Product Description
Features:
100% High Quality！
Tube filament LM317 adjustable regulator soft-start circuit board can also be used in the tube amp grid negative pressure adjustment.
High-quality PCB double-sided solder mask, thick copper foil, the line ripple coefficient is very small, for the tube pre-amp / tube filament effect is ideal.
Double-sided PCB gold-plated plate (47X43mm), vertical installation fixed, the use of 6A rectifier flat bridge on the center fixed hole fixed, with 3 cm bolts chassis chassis or heat sink, solid secure, small space utilization, Double-sided board can be welded on both sides. Suitable for small size chassis assembly to save space.
Tube filament, just power on, the voltage from 0V slowly to 6.3V or 12.6V voltage, the tube filament from the cold low resistance slowly increased, it avoids the voltage jump mutation impact tube, protection to extend the life of the tube.
AC 7.5V ~ 13V power supply, DC 1.2V ~ 12.6V adjustable voltage regulator, 1 ~ 1.5A current output.
Can also exchange AC 5V ~ 32V power supply, DC 1.2V ~ 37V regulator adjustable, 1 ~ 1.5A current output.
Import 6A rectifier full bridge, Nissan or imported 1000μ50V filter, LM317 adjustable regulator, Philips or imported 680μ50V secondary filter.
Circuit board connection will be connected: AC voltage 2 lead input, 2 DC voltage output.
Note:
Rectifier bridge / LM317 / Filter capacitor is a second-hand disassemble products
. Tested good before shipping. Quality is absolutely good.
Package Included:
1x
Tube Filament Regulated Power Supply Board
Delivery details
● Items will be shipped within 1~2 business day after payment received.
● Items are shipped from China by Airmail,
delivery time depends on destination and other factors, normally delivery to USA need
7~18 days
,
reach most of the countries within
10~35 business days
. But to Brazil or Africa, it need
35~65days
.
Terms of sales
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