Hello I wish, nowhere did I read what tube is used as a rectifier, it looks like a 6Z4-T, but I'm not sure, could the manufacturer advise any replacement from JJ electronics? well thank you
product as described, of good quality, fast delivery, only one problem in assembling the vacuum tubes, the pcb gives way and could break, it is necessary to disassemble the lower panel and support the pcb during the pressure to insert the vacuum tubes. Listening tests are in progress, with the running-in of the vacuum tubes.