PRT-08A Stereo Tube Preamp Board Based on CAT SL1 Circuit Bare PCB
$ 16.46
Description
PRT-08A Stereo Tube Preamplifier Board Bare PCB Base on CAT SL1 Preamp Note: this is a bare PCB. not include any Component!!! PCB size: 154*254*1.6MM FR4 preamp board works voltage: 0-AC220V >=0.05A 0-AC9V >=1A 0-AC14V >=1A we have the suitable transformer for this board. if you need. please contact us. This preamp are using 1pcs 12AU7 / 2pcs 12AX7 and 1pcs 6DJ8 (6922) we can provide the clear PDF schematic and BOM via email. ZERO-ZONE PRT-08A preamp is reference the famous CAT SL1 preamp Circuit , The sound quality is very good. Sharp dynamics, accurate positioning, medium frequency mellow, tube tastes very strong. was considered the almost the perfect tube preamp design. The CAT-SL1 design tubes are not like the other brands - multiple isotypes; but the targeted tube to meet the school requirements, the first level using U-tube 12AU7, The input tube; the second stage uses a high U tube (12AX7), which is an SRPP structure, taking its bandwidth and buffering 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, so as to push the rear stage power amplifier. 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 tube tastes tube taste.The filament is divided into two sets of voltage regulators, which respectively supply 12.6V for 12AU7, 12AX7 and 6.3V for 6DJ8 (6922) In terms of ingredients, using Panasonic and 718 resistors, gold-plated ceramic tube holders, BC-Philips capacitors, ELNA capacitors, etc., high-voltage regulators using the Toshiba and coupling capacitors are ERO+MKP series, which has a high cost performance. In the PRT-08A, we added a 30 second delay on the output component.Avoid the whistling of the preamp when power on. Package: 1x PRT-08A Stereo Tube Preamplifier Board Bare PCB Base on CAT SL1 Preamp 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
The packaged arrived earlier than the stated delivery date which was a nice surprise, the quality of the parts are very, very good indeed. The price was very reasonable considering the distance it had to travel. I am very happy to say my experience with DY-LASER was excellent and I would recommend DY-LASER (based on my experience here) to any potential customers. Many thanks and regards, John
Another excellent value, high quality laser product from a super 5* seller, very well packed and arrived in perfect condition. Fast dispatch and international delivery with full door to door tracking. Perfect product and international service, very happy with laser which focuses to a tight dot, thank you.
Good seller, just as described as far as i can tell, no markings to say what protective level they are. Fast delivery.
Related products
PRT08A Stereo Tubes preamplifier Kit Base on CAT-SL1 12AU7 12AX7 6JD8 (No Tube)
$ 38.33NEW Preamp Stereo Audio HiFi Tube Preamplifier 12AU7 12AX7 6Z4 Vacuum Tube
$ 127.24Bile Preamp-PRT10A Tube Preamp Amplifier-PCB & DIY KIT & Finished Board
$ 7.483W 4 Ohm Mini Enclosed Passive Woofer Speaker
$ 7.35