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Specification
Brand : Jolooyo
BulletPoint1 : This board comes with volume/bass/treble/balance adjustment
BulletPoint2 : PCB specifications: 205MM*120MM
BulletPoint3 : AC power supply: 180V-0-180V AC 40MA; 6.3V 1A; 8.5V 1.5A
Color : Black
ExternallyAssignedProductIdentifier : 4712655114709
IncludedComponents : 1pc Preamp Tube Tone board
ItemName : 6N11-J (6DJ8 ECC88 6922) Preamp Tube Tone Board Third Edition Zero Noise
ItemPackageQuantity : 1
ItemTypeKeyword : audio-component-phonograph-preamplifiers
Manufacturer : Jolooyo
Material : Plastic
ModelNumber : 6N11-J-AIRUIKE
NumberOfItems : 1
PartNumber : RIEU-982
ProductDescription : Description
PCB: 1.6mm thick double-sided board, full tin spraying process to ensure good passing performance of large and small currents. First-class PCB quality. The board wiring is very simple, very suitable for audio DIY enthusiasts to make and use.
PCB specifications: 205MM*120MM
AC power supply: 180V-0-180V AC 40MA; 6.3V 1A; 8.5V 1.5A
The tubes are all placed horizontally, making it easier to find a suitable case. The height of even the copper pillar is not higher than 5CM.
This board comes with volume/bass/treble/balance adjustment
The high-voltage power supply rectifier part adopts the electronic tube 6Z4 rectifier, which is more musical than the bridge stone rectifier. The high-voltage filter capacitor adopts Japanese Nichicon (Nichicon) 220UF*2, and the filter mode is CRC.
The filament uses DC power supply. After 8.5V AC bridge rectification and filtering, the tube filament is supplied with 7806 three-terminal voltage stabilization to ensure a high signal-to-noise ratio. Some players like AC filament, but the noise is more difficult to deal with, so our plan still uses DC, so the noise of the board is quite low, and it is only heard when it is close to the speaker (20 times the gain of the rear stage).
In addition, the potentiometer distance has been modified, all equidistant

ProductSiteLaunchDate : 2024-05-29T08:46:59.193Z
Size : 1 Pcs
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
UnspscCode : 52161500
WarrantyDescription : 60 days