GlassWare Audio Design
Thanks for supporting the Tube CAD JournalDesign your own Aikido Octal Stereo Line-Amplifier Kit. Add to Printed Circuit Board and User Guide only those parts that you need! Select from the following drop-down boxes the parts that you need to populate the stereo PCB.
Product Description
Design your own kit. If you already own many or none of the parts needed in building your own giant-killing Aikido line-stage amplifier, the above lists of parts will help you design an Aikido kit that includes everything you need to populate the PCB. Buy just what you need and save.
All that is needed to finish the entire line stage is a chassis, power supply, volume and input selector controls, and a handful of RCA jacks and hookup wire. Although this custom Aikido kit isn't all that is needed, it is a great start.
All that is needed to finish the entire line stage is a chassis, power supply, volume and input selector controls, and a handful of RCA jacks and hookup wire. Although this custom Aikido kit isn't all that is needed, it is a great start.
Accessories
Four Tungsol 6SN7s The old Tungsol name is back—as is much of the old glory. This new production 6SN7 from Russia is definitely an upgrade from the other 6SN7s in production. $69 for four 6SN7s. |
Resistor pack All the necessary resistors to populate the PCB. Resistor pack includes multiple values for the cathode resistors. Choose between two types: carbon-film, 5%, 1W resistors and metal-film, 1%, 1/2W resistors. At least 44 Resistors altogether. $10 |
Two 0.47µF PIO capacitors Two K42Y-2, 0.47µF, 500V, 10% PIO (paper-in-oil) coupling capacitors. Russian made and built to tight military specifications. Painted metal case houses foil/paper-in-oil capacitor. Here is one review from the web:
"After extensive testing between Rob and myself on several MAX builds, it is apparent that this cap provides an optimum choice for use on the MAX - neutral, smooth mids and highs, with an extended but flat high frequency response, and no loss whatsoever in the bass frequencies." http://www.diyforums.org/MAX/MAXk42.php $10 |
RTI Audio polypropylene-film Capacitors New RTIE Audio polypropylene-film coupling capacitors. This is an amazing sleeper of a capacitor. It is made in the USA by RTI Electronics, a 27 year old company that is, as RTIE likes to say, "an industry leader in the design and manufacture of
high quality audio/video Teflon capacitors." Which is true, as many high-end capacitors, no matter how labeled, are actually made by RTI Electronics. A huge upgrade in sonics over typical polypropylene coupling capacitors. (Obviously, the 12SX7 is not included, but shown to give a sense of the part's size.) $20 for two capacitors. |
Eight sets PCB stand-offs and screws and o-rings Securely mount the PCB with these eight sets of stand-offs. Each set includes top shoulder-screws, bottom screw and two soft rubber o-rings. Might seem expensive, until you price each of the pieces at a hardware store. $8 for eight sets of stand-offs. |
Four ceramic PCB-mount tube sockets High-quality, PCB-mount, ceramic tube sockets work beautifully on the PCB. $10 for 4 sockets. |
Supporting power-supply capacitors Two Wima MKP10, polypropylene capacitors: 0.68µF & 0.33µF 630Vdc. Six electrolytic capacitors (four for heater element shunting and two high-frequency capacitors for optional cathode resistor bypassing). $10 |
Output-capacitor rotary selector switch Need a rotary switch for switching between the two coupling capacitors? Four-pole, three-position, non-shorting switch and some hookup wire is all that is needed. All four coupling capacitors attach to the PCB and the two channels output connect to either coupling capacitor C1’s or C2’s or both capacitors in parallel. $6 |
Three-input selector switch & PCB The Select-1 switch and PCB makes wiring up a line stage amplifier easier. Two channels of three inputs (both hot and grounds) attach to the PCB and two outputs leave the PCB to the output jacks. When a line input is not selected, both its hot and ground are detached from the selector's output. $6 |
Super Strong Tape Five inches of 3M brand super-strong, double-sided, indoor/outdoor tape—an excellent solution for holding large capacitors to the PCB. $1 |
