PRT08A Stereo Tubes preamplifier Kit Base on CAT-SL1 12AU7 12AX7 6JD8 (No Tube)
$ 38.33
Description
PRT08A Stereo Tubes preamplifier Kit Base on CAT-SL1 12AU7 12AX7 6JD8 (No Tube) Note: This price is for products that have passed the welding test. The price does not include electronic tubes and transformers. Parameters. PCB size: 154*254*1.6MM FR4 Class A Immersion Gold Sheet Reference weight: 500G Input voltage requirements; (3 groups): 220V Not less than 0.05A current 9V Not less than 1A current 14V Not less than 1A current Material: Panasonic and 718 resistors, gold-plated ceramic tube sockets, PHI-BC capacitors, ELNA capacitors, etc., high-voltage regulator tube selection of Toshiba tube, coupling capacitor is ERO + MKP series. The PRT08A is a reference CAT tube preamplifier SL-1, which is designed to be the most perfect tube preamplifier in the industry for its dynamic, accurate positioning and medium frequency mellow. The CAT-SL1 design tube is not like other brands - many similar models; it is targeted to use the tube to meet the school requirements, the first stage uses the U-tube 12AU7, choose a relatively rich tube The input tube of the flavor; the second stage uses the high U tube 12AX7, which is the SRPP structure, taking the bandwidth and the buffer between the front and the back, and also preparing for the third level. The third stage is 6DJ8, which has a larger screen output current to push the power amplifier even better. The PRT08A is designed to be faithful to the original SL1 amplifier circuit parameters, without any adjustments; our updated parts are in terms of power supply: *The high-voltage power supply uses a regulated power supply, and the MOS tube is used as a voltage regulating tube to make it more electronically odor. *The filament is divided into two sets of voltage regulators, which are powered by 12AU7, 12AX7 and 6.3V 6DJ8 (6922). In addition, in the PRT08A, we added a 30-second delay-on output assembly to avoid reducing the "squeak" of the tube preamp before powering up. Package: 1x PRT08A Stereo Tubes preamplifier Kit Shippment: 1.Every parcel will be registered with tracking number. 2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions et. If the transportation time is not normal, please contact us
