A lovely day, met many facinating people during the day and in the evening. Well done to Mark and Andy, a great job. I hope people enjoyed the Woos, I will bring other stuff next time :)   Things I missed were Oppo phones and HifiMan HD1000 (the new flagships). I would have loved to have...

somewhat delayed getting down tonight, Little Chef at 8 am for breakfast?

I have some spare sources / cables etc but also Beyerdynamic 880 600 ohm and 990 600 ohm to go with the T1 600ohm if people are interested.

I have just packed the car with all the Woos and I am leaving in 5 mins. I am at the travel lodge on friday and saturday night if anyone wants a beer :)

I don't have a Mk111 mordy so no, but do have a Mk9 and have tried them on that but also have 5+ other 6AS7G amps that I have tried these on so my view is quite a wide one (and it is what I like to do). I have not tried them on my 4SE as I prefer not to use separate PSUs (but can do). I quite...

Thanks, still $50 though :) Every little helps with a house move on the horizon.

It would be nice to have a buying option with no supplied tubes also :) Many of the roller interested may have stacks already.

  I have a Fiio E12 and E12 DIY. They hardly get used (but are nice amps). Most of my phones are high impedance types so I favour amps like the LD 3 / 4. I bought a 4SE bought without any tubes so I can roll whatever I want (tubes are all cheap for these amps). It is s best with high impedance...

KWTubes was selling a 75 for about $13, same for the 74 I think. I have bought from him in the past and had no issues. Cheap P and P also.

I like the GB (Gold Brand) Sylvanias and they are still cheap and available. On par with the RCA Command and GE 5* 6080s. The more basic GE or RCAs I am less enthusiastic about but do rate Tung Sols / Chathams (however they are harder to find and more expensive nowdays). GEC  and Mullards are...

I would be in for 2 pairs of the RCA / Tung Sols.

I like the old 600 ohm AKG K240DF, my last pair was £30 delivered.

0.5w in HE6 has been a disaster in my experience, this headphone needs much more than that to sing correctly. The best I ever heard it was on the end of 200w Bryston monobocks!. With proper power (5w+, cheap Lyrs or more expensive other amps) then and only then do you see the quality of this...

  Quote:   Thanks  both, interesting fine tuning.

Manufacture codes, seemingly from WW2 era   GE: CL (JAN’ed GE tubes are rather rare) Hytron: CHY (merger with CBS came after VT-231 designations, hence no 'CBS/Hytron' yet) Ken-Rad: CKR Sylvania: CHS Raytheon: CRP RCA: CRC Tung-Sol: CTL   CRC is RCA

There is much cross dressing of 6F8Gs, and in any one make it relatively easy to find multiple types. I have always been a fan of round plate 6F8Gs and like the Tung Sol, National Union and Raytheon round plates. We have taled about the former for 20 years now but the latter have had little...

There are other quality round plate 6F8Gs.

Some 33S30 were on ebay a few month ago  and their German brother so they do come up, but were too rich for me. I fould that what is the best tube in one location rarely translates as the best in other situations though certainly there is groups of better tubes and others less good.

 You missed the tubes dual marked as GZ33 / GZ37 :) Easier to  think of all of these as either fat bottle (MOV) or thin bottle (Mullard).

The Russian ones are certainly much preferred in my book also

I have a a pair, work ok.

Anyone know of a good source of the improved resistors (to replace the yellow ones)?

http://www.ebay.co.uk/itm/B36-TUBE-Equiv-12SN7GT-CV-925-MARCONI-VALVE-AMPLIFIER-HOLLAND-NEW-OLD-STOCK-/231496510063?pt=LH_DefaultDomain_3&hash=item35e6446a6f   Two B36 Marconis made in Holland with black bases so they are not uncommon.

Has anyone tried either the 6L5G in the 6C5 variant or 7193 / 2C22 and DET20 / VR135 with the appropriate adapters for the double top caps. They all look like they might work.

I think these made in Holland Marconi tubes are actually Belgium 'Mazda / Adzam's' :)