My VTA Audio Transformers

My VTA Audio Transformers

Look at this everyone... As with everything I do I check my components especially my audio and power transformers.

I am absolutely stunned and  shocked how tight the tolerances are on my two audio transformers for my VTA ST 120 amp.
The tolerances are almost identical to one another and that is very rare indeed. Love It !  

Take a look at my findings below.

VTA ST 120 Amp Audio Transformers (All Measurements Done XL830L Digital Multimeter)

Output Side Audio Transformer 1 / Audio Transformer 2

Back Lead - / Red Lead +

Orange/Black: 1.9 ohms / 1.8 ohms

Orange/Brown: 1.9 ohms / 1.7 ohms

Orange/Yellow: 1.8 ohms / 1.9 ohms


Black/Orange: 1.9 ohms / 1.9 ohms

Black/Brown: 1.9 ohms / 1.8 ohms

Black/Yellow: 1.9 ohms / 1.9 ohms


Brown/Orange: 1.8 ohms / 1.9 ohms

Brown/Black: 1.8 ohms / 1.9 ohms

Brown/Yellow : 1.8 ohms / 1.8 ohms


Yellow/Orange: 1.8 ohms / 1.9 ohms

Yellow/Black: 1.9 ohms / 1.9 ohms

Yellow/Brown: 1.7  ohms / 1.9 ohms


Input Side Audio Transformer 1 / Audio Transformer 2

Red/Blue: 35.6 ohms / 35.7 ohms

Red/Blue-White: 29.8 ohms / 30.7 ohms

Red/Green: 15.9 ohms / 16.0 ohms

Red/Green-White: 13.7 ohms 13.9 ohms


Blue/Red: 35.7 ohms / 35.8 ohms

Blue/Blue-White: 63.8 ohms / 64.2 ohms

Blue/Green: 21.2 ohms / 21.3 ohms

Blue/Green-White: 47.9 ohms / 48.1 ohms


Green/Red: 15.9 ohms / 16.2 ohms

Green/Blue: 21.2 ohms / 21.3 ohms

Green/Blue-White: 43.8 ohms / 44.5 ohms

Green/Green-White: 28.0 ohms / 28.4 ohms


Blue-White/Red: 29.5 ohms / 30.0 ohms

Blue-White/Blue: 63.6 ohms / 64.3 ohms

Blue-White/Green: 44.1 ohms / 44.5 ohms

Blue-White/Green-White: 17.4 ohms / 17.7 ohms


Green-White/Red: 13.6 ohms / 13.9 ohms

Green-White/Blue: 47.9 ohms / 48.2 ohms

Green-White/Green: 28.0 ohms / 28.4 ohms

Green-White/Blue-White: 17.3 ohms / 17.7 ohms