Parts: Stuff to Get From the DIYAudioStore

In order to keep this as simple and standardized as possible, we are going to get as many of our parts from the DIYAudioStore as possible. These items are not always in stock at the same time, but the store does offer a helpful "notify me when available" option for anything that may be out of stock. With a bit of patience and a few orders, you should be able to get all of these together. Prices are what they were when this was written and all subject to change, naturally: 

• Aleph J boards ($25): "This set of circuit boards will make the Aleph J amplifier of Nelson Pass." You'll naturally be needing these. 

• Aleph J transistor kit ($47): this gets you all of the transistors that you will need, EXCEPT for the input transistors, which are sold separately. The MOSFETs are matched, which matters for the Aleph J. 

• Aleph J Linear Systems Matched JFETs ($49): the original First Watt Aleph J amps used Toshiba LSJ74 JFETs that are no longer being made. While you can still get "new old stock" (NOS) Toshiba JFETs from a few reputable sellers, many that are offered online are fakes. Better to get a closely matched quad of the Linear Systems versions direct from the DIYAudioStore. 

• Universal Power Supply board v3.0 ($25): we will be snapping off the rectifier section, but this is the board you want for your power supply. 

• 4U Deluxe chassis w/ silver faceplate ($339): expensive, but convenient. Get the silver faceplate with the pre-tapped M3 mounting holes, which will offer more options for mounting the power supply board. 

• Back panel parts kit ($79): all the back panel bits for the pre-cut Deluxe chassis, as well as mounting hardware for the boards and MOSFETs, all gathered together for you. 

• Keratherm transistor insulators ($19): these pads go between your transistors and the heat sink, in order to facilitate efficient heat transfer while also insulating, without being as messy as traditional thermal grease. 

• Fire Metall Eutectic Solder ($25): if it's in stock, get a spool of this solder, which was designed by a DIYAudio member and long-time electronics technician. Rather than spending time deciding what solder is best and where to get it, just toss it into your order and rest easy.