Schematic Directory
IMPORTANT STUFF: The schematics shown below are the sole property of
The Vacuum Tube Collective. Any attempt to duplicate these circuits may result
in fantastic sounding amplifiers, or the need to rebuild one's workshop after
the fire has been put out. The Collective assumes no responsibility for the
misuse of the schematics, and makes no claims of warranty. |
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Dowless 18 - Based on the Nielsen 18 with the
addition of a single 6AV6 gain stage up front. Inductor L1 value
unknown. Resistance is 597 ohms Black Blue wires. Red wire not used.
Original circuit from a 1960's era Gulbransen organ.
◄Click on image for full-size schematic. |
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Hitman Jr. - Based on Matchless Spitfire. V1 both
sections connected in parallel. All signal caps 630v Polyester. All
resistors 1/2 watt unless noted.
◄Click on image for full-size schematic. |
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Nielsen "Kill-O-Watt" - conversion of Roberts/Akai
Tape Recorder Amp Models 990 or 997.
◄Click on image for full-size schematic |
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The
Brother-in-law schematic. It's mostly and Matchless spitfire with
some changes, and based on our "ebay" PTs. By Lorne Bradshaw.
◄Click on image for full-size schematic. |
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The Nielsen Victor #1 schematic.
◄Click on image for full-size schematic. |
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