6H30 replacement

questions like this should always be directed at the manufacturer... who would know exactly how the spec'd tube is being run, and thus what substitutes, if any, could be used

@astolfor … You are quite right in seeking a better quality 6h30 , I would encourage you to acquire some pre 1990 production Reflector Corp 6h30 DR 

they are relatively expensive compared to new production Sovtek and are becoming increasingly rare with a few unscrupulous individuals particularly on Ebay

listing Sovtek’s as NOS DR’s … Caveat emptor , however once obtained and inserted into your equipment you will realise how hard and sterile sounding the Sovteks are in comparison.

This guide should be of some assistance in discerning genuine Reflector DR’s

http://www.aca.gr/index/hiend/hiendArticles?row=1988  

http://www.lampizator.eu/UPGRADE/upgrade%20noval%20tubes%20to%206H6P.html

our good friend ficus lampizator has strong opinions on this. 6N6P - Not a western replacement, but a far easier to get and less costly (no spin) Russian one. 60‘s stock with the square getters are da bomb. I haven’t use them to replace 6H30’s personally and can not comment, but have used them in my own scratch builds and can vouch that they are great tubes judged on their own merits

@pesky_wabbit … 👍

@jjss49 I got 2 different answers. One that I could replace them with the 6DJ8, 6922 or 7308, and another answer that I could not.

I "know" enough to know that the 6H30s have a big tolerance for plate voltage, and that if the amp is fully energizing the plates the 6DJ8, 6922 or 7308 will last about a blink of an eye. 

I had a BAT, and really it but there was something that I could not identify that "bothered" me, and I talked to Victor(?) the owner and he said that he was not fully energizing the plates and although I would sacrifice lifespan, I could try a couple different tubes. I tried them and I loved the amp, until I replaced the amp with a couple of nhb-458.

I really like the Heritage, but I want to try to soften(?) a little the edges. The Telefunken ECC803S-diamond mark-gold-pins, I have about 24 of them that I inherited from my father 😁, did marvels to the Heritage.

Now it is clear to me from the discussions here, that I should stay with the 6H30s or maybe 6N6P. 

@tsushima1 do you have a reliable tube source? I would love to try  the Reflector Corp 6h30 DR.

thank you