captkhz
Responses from captkhz
| Cayin A70T has bogus tube rectification? I think I can speak for him when he brought the amp. to me for study, repair, he thought it was tube rectified because of the nice gz-37 tube there on the amp! I agree, Quicksilver a good option and even Dyna as well | |
| Cayin A70T has bogus tube rectification? Newbee, I hear you, but, we run the risk of becoming too benign and cynical. If we, as Americans' allow ourselves to go along with the B.S., we collectively get what we deserve. | |
| Cayin A70T has bogus tube rectification? I agree with Jeff. As a tech. , my reasonable boubt left me when it was discovered that the factory power transformer, without a secondary HF center tap, could only be set up with a bridge rectifer,meaning no 5AR4 can be used legit. and no choke c... | |
| Cayin A70T has bogus tube rectification? No agenda on my part, had not heard of Cayin prior to looking at this repair. The truth will out. If you own one of these amps...do a simple test. Pull the 5AR4 and see if the amp plays, simple as that. I hope this unit is the only one that was wi... | |
| Cayin A70T has bogus tube rectification? I think they (designers) ran into problems...took the easy way out...5ar4 failures, we still want large cap. filter values...what to do...throw in the diodes...what about the tube people want...5AR4...keep it on there! Still does not explain the p... | |
| Cayin A70T has bogus tube rectification? I agree. for instance, 5AR4 failures as mentioned in my last post may have prompted addn of diodes. The bridge configuration is getting far removed from the orig. topology, however, and gives me pause. I am willing to consider these reasons. Many ... | |
| Cayin A70T has bogus tube rectification? I am the friend...tech. who serviced this amplifier, need to enter this discourse. I am creative, however, not creative enough to invent "class A1"! Anyway, I repaired the xover distortion problem by change in bias current. I would like to install... |