Can’t buy output tubes anywhere except from manufacturers at high prices.

@hiendmmoe For what it is worth I purchased some Russian preamp tubes that were advertised as New, NOS and Matched.  When they arrived they were not new. The boxes had testing results that were not anywhere close to being matched. When I tested them with a calibrated Hickok 600a tester they tested well below the new ranges.  Absolutely unacceptable.  To their credit they approved the return and credited all costs including shipping both ways. Beware their ad copy is misleading.

I've ordered from VIVA new production Psvane KT88s as well as NOS Russian 7189A power tubes, no issues

FYI: B&H sells "Telefunken" tubes but they are not German made Telefunken tubes.

I asked TELEFUNKEN Elektroakustik and they told me the tubes were made in partnership with JJ Factory of Slovakia.

I thought it was always common knowledge the "Telefunken Black Label" tubes were just JJ’s. Always look at the shape of the glass dome (especially on EL34, for example) -- only JJ’s have that goofy, awkward rounded dome shape.