Version 2, without power tube sockets! Use whatever power tube you want - the socket mounts to the chassis and you connect it to the PCB with wires.
This is a blank PCB to build a 50 watt monoblock version of "Engineer's Amplifier", a push-pull stereo tube power amplifier. For full details on the amplifier design, including pictures, measurements, schematics, bill of materials, mechanical drawings, etc. refer to my web site. eBay will not allow me to post the link here any longer, so you will need to do a web search.
This affordable (total cost to build is about $500 per channel) stereo tube power amp uses inexpensive tubes in a novel distortion-cancelling design to give excellent performance. It's easy to build - all the components mount on the PCB - and it sounds GREAT!
Output as designed is about 50+ watts per channel into 8 ohms. This version uses the 6HJ5 sweep tube in the output.
Note that this project does involve contruction of high-voltage circuitry, so do not undertake this unless you are qualified and comfortable building circuits that use dangerous voltages!
This auction is for is the PCB only, no parts or anything else is included. Photo of completed (green) board is for reference only!
Flat rate shipping via FedEx to US destinations is shown.
LIABILITY DISCLAIMER
A person who constructs or works on electronic equipment may be exposed to hazards, including physical injury, the risk of electric shock or electrocution, and exposure to hazardous substances such as lead, mercury, and other inorganic or organic compounds. These hazards can result in health problems, injury, or death. Only qualified persons who understand and are willing to bear these risks themselves should attempt the construction of electronic equipment. By purchasing this item, the buyer acknowledges these risks.
Vacuum tubes operate at high temperatures, may contain toxic substances, and may have exposed parts that carry hazardous voltages. There is a risk of electric shock, electrocution, burns, or fires that is inherent in the construction and use of vacuum tube equipment. By purchasing this item, the buyer acknowledges these risks.
IN NO EVENT SHALL THE SELLER BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE including, but not limited to, property damage, personal injury, death or legal expenses. Buyer's recovery from Seller for any claim shall not exceed the purchase price paid by Buyer for the goods, irrespective of the nature of the claim, whether in warrant, contract or otherwise. By purchasing this item, BUYER AGREES TO INDEMNIFY, DEFEND AND HOLD SELLER HARMLESS FROM ANY CLAIMS BROUGHT BY ANY PARTY REGARDING ITEMS SUPPLIED BY SELLER AND INCORPORATED INTO THE BUYER'S PRODUCT.
If you do not agree to this disclaimer, DO NOT BUY THIS ITEM.