Sylvania JAN 6SL7GT / VT-229 Black Plates Matched Pair NOS 6SL7 VT229 2 Holes

This is a well matched pair of Sylvania JAN 6SL7GT / VT-229 vacuum tubes. The tubes have a medium glass bottle and both have the Sylvania logo printed on each base.  These tubes are visually very closely matched. They test very close to each other. They both have round, black plates, clear glass, bottom getters, and white lettering. Some sellers reference these tubes as the 2 hole bad boys. I have listened to them and they sound fantastic! Nice low end, crystal clear but not bright mids and highs. These are excellent Sylvania JAN 6SL7 tubes that are highly sought after, act quickly before these sell out! More available upon request.

Be careful buying tubes from sellers who list tubes as matched if they do not provide test results or the equipment that they tested their tubes on.

I personally tested these tubes on my recently calibrated Hickok 600a and my TV7D/U and the results are as follows:

2,650/2,400
2,675/2,425