• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

JJ KT88 tubes glowing bright yellow.

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#41
Like the arm, bet that was great fun to make, no problems with earthing I guess. Does it work well/sound good? Nice amp, I take it is PP? I do not know much about tube gear as this is a new interest. Is the ST70 a design or an old model of amp that you have restored?
 
#42
The Arm sounds Great...I found the Design here, it's a Nanook Arrow Shaft Ball Point Pen Unipivot Design....It cost no more than the time it took me to make it...The Amp is a Dynaco ST-70 that was Modded when I first bought it over 25 yrs. ago...Since then I started using KT77's in it and changed the OutPut Transformers to 60 watt Edcors...It puts out a Very Nice 35 watt/Ch. at least, and it's a Push-Pull...

Here's the ToneArm...
http://www.diyaudio.com/forums/analogue-source/173861-my-latest-iteration-nanooks-219-tonearm.html
 
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