Tubes Asylum: 7DJ8 in place of 6DJ8? Overall experiences? by jeffreybehr Questions about tubes and gear that glows. FAQ

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Posted by jeffreybehr ( A ) on March 19, 2018 at 14:07:58

I'm VERY happy with my pair of newish PSA BHK 300 monoamps, each of which uses a pair of 6922/6DJ8s.. Paul McGowan and Bascom King recommend the NOS Tungsram 7DJ8/PCC88 (they come with NP Genelex 6922s) and have encouraged owners to try others.

I have a set of the Tungsrams and a set of Matsushita/National PCC88/7DJ8s* on the way, and I'm bidding on a set of Siemens/Rohre PCC88/7DJs** (see link).. But I'm curious about others' experiences with 7DJ8s in place of 6DJ8s. And yes, I do read PSA's threads on tube rolling in both their poweramps and preamps.. Interestingly to me, they have heater-Voltage switches in the preamps.

So...anyone else have positive or negative experiences with the 7s?
.

* apparently the 7-Volt equivalents of the Matsushita/National 6DJ8s I already have.
** if won, these will be my first-ever Siemens tubes in 74 years...that this oldfart can remember. :-)

• https://forum.psaudio.com/t/since-my-first-bhk-300-thread-go   (Open in New Window)

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