Ccda Noval Stereo Pcb The new ccda noval aikido stereo board is shown above. almost square, being 6 inches wide and 5.6 inches tall, the new cdda noval pcb does not hold a raw dc power supply, much like the new aikido noval pcb. note the pattern: no more all in one designs. the ps 14, like the janus and ps 1 pcbs, is the same width as the new ccda noval pcb, so it. I changed the front end to the broskie ccda design ccda noval stereo pcb. i removed all bypass capacitors from the cathode resistor in the power tube stage. i added a little bit of local feedback (300k) from the plate of the el34 back to the grid of the follower in the ccda stage. i've rolled tubes here and found 5751 most to my liking.
Ccda Noval Stereo Pcb My solution was to create a new pcb: the ccda mono noval. the pcb is cute, being only 3 inches by 5 inches big. the pcb holds one ccda (constant current draw amplifier) gain stage and one rc b voltage filter and two output coupling capacitors. the ccda mono noval is a mono design, so two will be needed for stereo. Ccda noval rev a. a second set of output coupling capacitors. i so believe in this feature that i plan on incorporating it into all my future pcb designs. of course, you can use a single pair of coupling capacitors, but two offers your the possibility to tailor the sound to the recording or the music or your mood. listen differently. The tube selection options for the aikido noval are extensive, including the 6cg7, 6dj8, 6h30, 6n1p, 12au7, and 12ax7. you can also use differing kinds for the first & second stages. ignoring any other factors, the choice of tube could rest solely on how much gain is needed from the preamp, and chances are that it’s not very much. If you use the octal aikido board and (for example) 6sn7 tubes, that will add up to 2.4a heater current per board, but there may be other tubes which are even higher. note: the ps 21 board silkscreen and manual specify the regulator as the ld1085, which is only a 3a part. however the kit itself came with the 5a ld1084.
Ccda Noval Stereo Pcb The tube selection options for the aikido noval are extensive, including the 6cg7, 6dj8, 6h30, 6n1p, 12au7, and 12ax7. you can also use differing kinds for the first & second stages. ignoring any other factors, the choice of tube could rest solely on how much gain is needed from the preamp, and chances are that it’s not very much. If you use the octal aikido board and (for example) 6sn7 tubes, that will add up to 2.4a heater current per board, but there may be other tubes which are even higher. note: the ps 21 board silkscreen and manual specify the regulator as the ld1085, which is only a 3a part. however the kit itself came with the 5a ld1084. Ak member. i have built a lot of different preamps. sonically, imo it's hard to beat a dynaco pas3 phono stage in combination with an aikido preamp. here's one i cobbled together using power supply parts on hand. it also has a remote controlled volume pot and mute relay, and an input relay pcb i had made. Wellington, new zealand. getting slowly closer to completing the first version of my schematic for the new ccda preamp. at the moment i'm trying to finalise the designs for the ancillary regulated power supplies. the bottom lm1085 supply in the image is one of two powering each of the 6n6ps heaters.
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