Push-Pull Compactron Amp using TV Tubes

Pete Millett has a new Hi-Fi vacuum tube amplifier project on his website which is refereed to as: The "Engineer's Amplifier" - a distortion canceling push-pull amp using cheap TV tubes (!). The amplifier consists of a 2-stage push-pull pentode design that puts out a little under 20 Watts. The driver stage uses a pair of 6CB6 pentodes in a differential amp configuration with a ICP10M45S CCS. The output stage uses compactron TV sweep tubes (6JN6 or 6JM6 / 6GV5). The output bias is set so that the amp remains in class A1 operation until about 10 watts where it enters class AB1.


A solid state power supply comprised of silicon rectifiers and a MOSFET ripple filter with no chokes which helps keeps cost down. The power transformers and audio output transformers are from Edcor who make great quality iron at a reasonable price.


As you can see, this will not be a simple amplifier to construct using point-to-point techniques. Fortunately Pete is selling printed circuit boards on eBay for $50US (September 2009) - search eBay for "The Engineer's Amplifier" or user: pmillett.

Full details for Pete's latest project the DCPP Amp are available on his website.

More Push-Pull Tube Amplifier Projects:

• 5751 SRPP / EL84 SIPP Tube Amplifier
• 6T9 Compactron Push-Pull Amplifier Project
• KT88 Push-Pull Mono Block Tube Amplifiers
• KT77 SIPP (Push-Pull) Tube Amplifier
• EL84 Push-Pull Tube Amplifier Project
• Inexpensive K-12 Push-Pull Tube Amplifier Kits
  

What's Playing: The Coryells - Funky Waltz