TURNER AUDIO
Hi there, my name is Patrick Turner and I have a small audio electronics business located in
TURNER AUDIO
Hi there, my name is Patrick Turner
and I have a small audio
electronics business located in
Telephone...(02) 6241 2760.......10am to 7pm
EASTERN AUSTRALIAN TIME!!!!
Please
follow the links
below.
My last website
update was in late 20 May 2010. There has been no change to the
technical information in all pages.
Although I have
reduced my work levels I continue to hold email discussions with all
others interested in technical aspects of vacuum tube operated
amplifiers. However, most answers to questions are are to be found in
this website from which there has been a daily average download of
110MB daily for the last 4 years.
I have have some ongoing health challenges which I have described in
detail in ABOUT
TURNER AUDIO.
REPAIRS
REPAIRS.
For most new or old audio equipment including power amplifiers,
pre-amplifiers, receivers,
tuners, loudspeakers, turntables, radios, and other items. Includes
some price estimates and policies.
HAND
CRAFTED PRODUCT
POWER
AMPLIFIERS. 11 pages on tubed push pull and single ended
power amps from 4 watts to 300watts.
New pages from 2008 for 55 watt amps with 845 and for 32 watt amps with
13EI.
4 pages on solid state amps.
1 page on chassis and metal work for future amps.
PRE-AMPLIFIERS.
4 pages for tube line level and phono preamps.
LOUDSPEAKERS.
1 page on full range stereo floor standing speakers.
1 page on measuring speaker performance, design for simple 3 way
speaker
and subwoofer for hobbyists with crossover filter charts and a
microphone recipe.
RE-ENGINEERING
RE-ENGINEERED
AMPLIFIERS. 5 Pages on Quad, Leak, Dynaco,
old JBL amps.
I also re-engineer older speakers.
New pages are being prepared for 2008 to give some details about other
hi-end brand re-engineering.
FOR
SALE, December 2008.
CUSTOM MADE AMPLIFIERS.
For those wanting the best in new audio amps.
OUTPUT TRANSFORMERS FOR
SALE.
16 different types of output transformer listed for
diyers and others.
OUTPUT TRANSFORMER
INFORMATION. More info
about output transformers for sale and advice about choice of them and
using them.
OUTPUT TRANSFORMER ANALYSIS.
Some deep and meaningful analysis about capacitance and the output
transformers for sale.
POWER TRANSFORMERS FOR SALE. 33
different types power transformers listed for diyers or others.
POWER TRANSFORMER
INFORMATION. General notes about the pt for sale and
notes about choosing a pt and using one and conditions of sale.
CHOKES
FOR SALE. A page with some new and old chokes for sale.
MISCELLANEOUS
FOR SALE. A collection of pre-owned equipment for
sale. Solid state amps,
turntables, cassette players,
opportunities for diyer miracle workers, budget 3 in 1s, etc.
Alas,
I have no loudspeakers for sale, and virtually no time available
for custom loudspeaker construction because of the demand for amplifier
products.
INFORMATION
EDUCATIONAL
AND DIY.
Design of pre-amps, power amps from 4 watts to 1,000 watts and much
general basic electronics.
1 page about good audio for the home, 3 pages on basic tube operation,
4 pages on load matching to beam tetrodes and triodes,
5 pages on tube amp power supplies, output and power transformers and
chokes,
1 page on fully tubed AM/FM tuner with MPX decoder,
2 pages with 16 miscellaneous schematics.
ABOUT
TURNER AUDIO. 1 page about my background, some 2008
thoughts about life with a soldering iron, and how a bicycle saved me.
Last updated
20 May 2010.
Most of the website was prepared before 2006. New pages have been added
after August 2008.
Nothing since 2006 has been removed except tiny mistakes and details of
items I have sold.
Download the whole site now to replace older edited versions. About
22MB.
Postal address,
You are at the index page.