KT66

[jestaudio]

Been doing a bit of tube rolling in the ODS and tried some cryo KT66 i,d been using in my'wreck , can't say i was impressed, i think the 6l6gc winged c sound better, anyone else tried KT's

[212Mavguy]

Nope, I haven't tried kt66's in my 50w OTS or HRM types. I'm afraid about the screen voltages, I have both the TS RI kt's and a couple of very valuable pairs of vintage British ones. Of course I'd not run the spendy ones until some pin voltages were taken and compared to the spec sheets. I bought mine, didn't build.

I do have a boutique amp built around the kt66, it's a single channel Bluesbreaker circuit that sings almost as readily as my D-clones. Chris Siegmund built it.

[renshen1957]

Been doing a bit of tube rolling in the ODS and tried some cryo KT66 i,d been using in my'wreck , can't say i was impressed, i think the 6l6gc winged c sound better, anyone else tried KT's

Hi,

Depends on which mfg's KT-66 you have. If its parentage is from China, these tubes sound better biased hot.

Which brand of KT-66 do you possess?

I am work on a break, however, this review goes into detail under Shuguang:

http://thetubestore.com/kt66reviews.html

I generally do not trust reviews by vendors of tubes, however the above URL points out that some the tubes (Sovtek, Tungsol) that are sold as KT-66 are just 6L6 tubes in fancy bottles and others (Saratov, Gold Lion) are the genuine article, I haven't seen Saratov, but suspect from prior experience with Gold Lion tubes that Saratov is most likely the source for the Gold Lion or will bear a striking resemblance.

The old Russian 7951xyz (examine your zipper) tubes (disc. but still for sale) were repinned 6L6s. The new EH 7591 are 7591 tubes but in oversized bottles.

I haven't tried JJ's take on the KT66, just haven't had time.

And, I haven't tried the Shuguang Treasures (Black Interior), but a number of Hi-Fi friends swear by this tube, state its the closest one can get to the old Genelex MOV KT-66 without going into serious debt purchasing a quad, only semi serious debt.

Breaks over,

Best Regards,

Steve

[jestaudio]

Been doing a bit of tube rolling in the ODS and tried some cryo KT66 i,d been using in my'wreck , can't say i was impressed, i think the 6l6gc winged c sound better, anyone else tried KT's

Hi,

Depends on which mfg's KT-66 you have. If its parentage is from China, these tubes sound better biased hot.

Which brand of KT-66 do you possess?

I am work on a break, however, this review goes into detail under Shuguang:

http://thetubestore.com/kt66reviews.html

I generally do not trust reviews by vendors of tubes, however the above URL points out that some the tubes (Sovtek, Tungsol) that are sold as KT-66 are just 6L6 tubes in fancy bottles and others (Saratov, Gold Lion) are the genuine article, I haven't seen Saratov, but suspect from prior experience with Gold Lion tubes that Saratov is most likely the source for the Gold Lion or will bear a striking resemblance.

The old Russian 7951xyz (examine your zipper) tubes (disc. but still for sale) were repinned 6L6s. The new EH 7591 are 7591 tubes but in oversized bottles.

I haven't tried JJ's take on the KT66, just haven't had time.

And, I haven't tried the Shuguang Treasures (Black Interior), but a number of Hi-Fi friends swear by this tube, state its the closest one can get to the old Genelex MOV KT-66 without going into serious debt purchasing a quad, only semi serious debt.

Breaks over,

Best Regards,

Steve

These are harma cryo tubes from watford valves

[exocet]

Harma are Watford Valves "re badged" Chinese / jj tubes.

[jestaudio]

Harma are Watford Valves "re badged" Chinese / jj tubes.

Explains why i did,nt think much of them, i,ve never found a JJ tube i like