Tubes Asylum

RE: A tube journey with lesson learned, Re; KT88 & KT150

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This Post Has Been Edited by the Author

In Reply to: RE: A tube journey with lesson learned, Re; KT88 & KT150 posted by Nunki on January 19, 2024 at 10:19:46

The QS V4s before being discontinued had a cycle refresh with upgraded transformers that were suitable for a wide range of output tubes, from the el34 to the kt150. So yes they had the correct voltage to handle and maximize the kt150 tube. Before the change he had like 300 plate v. Not enough to push the kt150s which do much better around 600 v, now the upgraded transformers over at QS.
Check your voltage, it makes a difference no matter what tube dealers tell you. Thus don't waste money on tubes that don't take advantage on your amp design. Also secondary plate voltage makes a difference as well to.

Edits: 01/19/24 01/19/24 01/19/24

Follow Ups:

The Quicksilver V4s always had 600vdc on the plates - garymuffley 11:11:36 01/19/24 (1)
- RE: The Quicksilver V4s always had 600vdc on the plates - Mr_bill2 11:18:08 01/19/24 (0)