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Vacuum Tube Circuits, page
2
Vacuum Tubes: # - HI - S
T - Z
Last Updated on:
Monday, October 03, 2011 06:08 PM
Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
IT-coupled 6C45P-6B4G PP Amplifier - Fixed bias on both stages.
The amp is based on Ralph Power's simple IT-coupled PP amp. However, being a
Fixed Bias Believer, I converted both stages to fixed bias. Output stage
uses a conventional power supply for biasing; first stage, 6C45P
into .(Circuit design added 07/07)
Klauskorrektor I - The first phono stage . .(electronic schematic
added 03/08)
Klausmobile Tube Tester - The tester is an entirely analog device
controlled by a PCI bus industrial DAC/ADC card. As built, it enabling
curve-tracing of small single and dual triodes with indirect heating. Dual
triodes can be tested each side separately or both sides in parallel. Full
tests of pentodes are possible with an external screen grid supply. The
design....(added 07/07/07)
Low-Voltage Class-Tube Headphone Amplifier - This OTL design
features a high-voltage power supply that is less than half of the one used
in the author's first amp and most other tube amps, but without compromising
performance. Designed by Helmut Ahammer (Circuit design added
01/08)
Mammoth I - Mamont (aka Mammoth, Mamoet, Mammut....) power amp was built
around Atma-Sphere M-60 design. Atma-Sphere site had enough info on the amp schematic
and after-market mods and tweaks. Output tubes (8 per channel
No-Compromise OTL Tube Headphone Amplifier - The author achieves his quest
for the ultimate headphone amplifier that offers the best possible sound without any
compromises. Based on the same circuit topology as his "Top-Level" amplifiers, this
version uses a Raytheon 5842....Designed by Andrea Ciuffoli (Circuit design
added 01/08)
Output Transformerless Tube Headphone Amplifier - This OTL mu-follower
design uses paralleled tubes (2 per channel) to minimize noise. It also makes an
excellent preamplifier. Designed by Kurt Strain (Circuit design added
03/08)
Single-ended driver for a Circlotron OTL - Originally, this circuit was
driving a 6B4G PP output stage. Transformer-coupled, naturally. I started with
cap-coupled Mullard splitter using three 4P1L direct-heated loktal pentodes. Not bad
at all, but had insufficient gain. Then I tried a plain Loftin-White configuration
with a LL1660 interstage (this one is a one-of-a-kind custom 30mA
version....(schematic added 05/08)
Single-Ended OTL Amplifier for Dynamic Headphones - A simple OTL design that
uses just two tubes (dual triodes) for stereo. It has a common cathode input stage
direct-coupled to a cathode follower output stage. Designed by Aren van Waarde
(Circuit design added 03/08)
SRPP-Input Tube Amplifier For Headphones & Loudspeakers - This
transformer-coupled design uses a series regulated push-pull input stage and a
parallel-triode cathode bias output stage. The audio output transformer is hand-wound
from a kit. The amp will drive both headphones and speakers. Designed by Tony
Frazer (Circuit design added 01/08)
Stereo Tube Amplifier (Aaron Cake) - The circuit is simple, yet is capable
of excellent performance. I designed it specifically for use as an amplifier for the
digital sound card in my computer. Audio input can be from any two-channel line level
device such as a television, CD player....(electronic design added 6/07)
