I have found Mullard GZ30's on ebay for as little as $22 per tube, they sound great, closer to the 5y3 than the 5u4 in voltage drop. However, they don't have the high voltage/current limits of the 5U4 or the 5AR4, you would have to be careful about using them in an SET power amplifier without knowing they are capable of the output, I would stick with the other types for power amps.
SET owners, need help with Rectifier tube
I am looking to replace the rectifier tubes in my Coincident Frankenstein monoblocks. The current tube which came with the amps is a GZ4P. I have learned the P designation indicates a Chinese tube.
Does anyone have experience with a Russian substitute which is a 5U4C?
Mullard has a substitute which is a GZ30 which go for $50.00 each. Is it possible these tubes can effect a sonic improvement?
Any input would be much appreciated. Thanks.
Does anyone have experience with a Russian substitute which is a 5U4C?
Mullard has a substitute which is a GZ30 which go for $50.00 each. Is it possible these tubes can effect a sonic improvement?
Any input would be much appreciated. Thanks.