A question I hear a lot. Do I need to have my Valve amplifier biased? So What is Bias. Well to put it simply the bias of a Valve amp is set by adjusting the grid voltages to set the idle current of the output...
First consider looking at the very excellent and essential A-Z of Analogue Synthesisers by Peter Forest . If you are serious about buying he gives details of many faults you are almost guaranteed to find with...
Voc Rock Guitars Audio Reviews on ECC83 12AX7 Pre amp tubes. Essentially there are only 3 major tube manufacturers remaining in the world today. We decided to put the 3 most popular tubes manufactured by these...
I don't usually get on my high horse, but I keep on seeing various eBay items that explain how to service your own valve amplifier, etc. Note: For anyone who pooh-whos this and chooses to ignore what I am...
I'd just like to point potential Hohner Pianet bidders towards the truth as there seems to be a lot of confusion about the different types of these great popular electric pianos. The most common type of Pianet...
MELOS Tape-based Echo Chamber The MELOS Echo Chamber uses tapes to create echos - there is only one tape head and the tape is a long loop inside a cassette rather like the old BETAMAX video tapes - the point...
Casio DH-100 The Casio DH-100 is a monophonic MIDI instrument with 6 tones : Saxaphone,Trumpet,Synth Reed,Oboe,Clarinet,Flute. All of the tone's timbre changes depending on the breath control from the mouth...
Heres how to test that old valve amp you found in the attic. Why, just find the nearest mains socket and plug it in! See the lights come on therefore it works! Its obvious isn't it? - but not so obvious is in...
Electric Guitar Buyers Guide Electric guitars are so named because in order to hear the music they make you need to plug them into an amplifier, they do not need to be plugged into the mains themselves...
Public address installation 100V Line When installing a 100V line system, it is important that the correct size of cable is used to connect the speakers to the amplifier. The following chart gives an...