300W AMPLIFIER IMAGES.
Here are some images of the 300W amps.....
Tube amps can look dramatic at night because of the blue glow
seen in power tubes. It isn't dangerous to be
near tubes that are on; its just a fluorescence effect
phenomenon that occurs when tubes are healthy.
Another night pic....
This is not a trick picture; there really are a dozen 6550 to do
A daytime pic of the amps.....
The connection of the speaker cables is now not as shown but
taken to the output transformer
ends of the amp chassis.
The 12 red leds near the middle of the amp chassis ( just
visible ) were to indicate if the bias for a tube is wrong.
The latest amp version has now just 12 x 5mm dia holes with 12
recessed test points so an owner can easily
measure the cathode bias voltage for each output tube in 2
minutes to see if all is well perhaps every 3 mths.
Active protection will protect against any serious problems.
Umbilical cables between the power supply and amp chassis are
mobile crane cables meant for 415V
3 phase mains supply with 5 inner cables in each black
insulation sheath, each one rated for 20 amps.
This picture taken before about 2002 is entirely historical, and
the same dude in 2016 has become nearly ancient,
and his diminished existence confirms the old saying.... "The older a man gets, the better he
He is not making any new amps any more, but he is still
soldering on towards old age to complete a few speculative
projects if time permits it.
Back to index