rodman99999
Responses from rodman99999
| 12au7 or 12ax7 What, "preamp"? The Prologue 5 is a push-pull power amp. It's nine pin dual triodes are phase-splitter and gain(driver) stage valves. | |
| 12au7 or 12ax7 Give Kevin a call, at Upscale. No one will be able to offer better advice, regarding which will yield the most, and what tubes will best provide your favorite aural flavor. (https://www.upscaleaudio.com/pages/contact-us) | |
| Disaster OUCH(I feel your pain)! Best wishes on a fast recovery and complete system restoration. | |
| Connecting Speaker Cables to Dynaco ST-70 I always installed Vampire or WBT five-ways on Dynaco tube amps. Simple to remove the existing terminal strips and use the same openings, without butchering/modifying the chassis at all. Insulate the unused x-former leads. MUCH better connection t... | |
| Pre Amps which sound similar to "older" Conrad Johnson Tube Pre amps? You can generally achieve that old, warm coloration by loading a preamp with NOS British valves, like from Mullard, Ediswan and Brimar(UK made/not rebranded). | |
| What's with BAT? Here's hoping it helps, somehow. Happy listening! | |
| What's with BAT? Hello, slaw- Generally speaking, it seems most that use the term, "musical", are referring to tubes that add warmth to their system. Siemens won’t. The early to mid 60’s, grey shield, internally date coded, CCa is a very neutral/clean tube, with b... | |
| What's with BAT? That’s what I thought. I was aware of the tube, but- never saw it used, prior to BAT’s VK-D5SE(et al). I’m with you, when it comes to the most excellent 6SN7, but- I don’t believe anyone made a quieter tube than the Siemens CCa(six, in my VK-D5). ... | |
| 6922 Tubes! Hi, geoffkait- "Besides IIRC hydrogen has its risks......"? I’d say you remember correctly, unless one intends to launch a Saturn rocket, or is planning a disaster. =8^) (https://www.youtube.com/watch?v=_R7GoRcuDzA) | |
| What's with BAT? Hello Ralph- Do you know of anyone, stateside, that actually incorporated the 6H30 in their designs/products, before BAT('98/'99)? | |
| Preamp popping! @escritorjuan - Don't know who gave you that advice(amp on first/off last), BUT- Don't ever take any advice from them again! | |
| What's with BAT? The Russian 6H30 was actually introduced to the USA by BAT(who has as it’s designer a genuine Russian rocket scientist). The tube is more efficient than the previous 6DJ8/6922, allowing less tubes in circuit, to perform the same job. ie: My VK-D5... | |
| Preamp popping! Didn't see a reference to your power amp's make or bias system. If possible, check your bias adjustment. Personally, I can't think of a way for your pre to cause output tube failures. | |
| Preamp popping! If you’re saying that the popping has only started recently and you’ve been following the same turn-on sequence as before: Yes- It’s probably a tube issue. If it’s affecting both channels, check the rectifier. If only one channel, the signal tubes... | |
| Tube rolling preamp or power amp gain tubes, which ones (or both)? Both can greatly affect your presentation, depending on how much cleaner or warmer the new tubes are, compared to the stock ones. Nice thing about your components is you can swap 12AU7s between them, to gauge the differences. The effects will be c... |