4 x Mullard ECC83 pulls - £100

[playloud]

If you're in the UK, these are probably worth a punt: https://www.ebay.co.uk/itm/225415771665

 

[StingRay85]

That looks like a great deal

 

[purpleplexi]

Yeah I've bought these 'tested and working' tubes before. In my experience that means you plug them in, they glow, and they sound like shit.
Anyway they're gone.

 

[Fernieite]

Well, I'm very happy to report that all 4 of these 1964 Blackburn Mullards (2 x 161 from March 1964, and 2 x 163 from September 1964) test very strong, have not shown any microphonics so far, and sound fantastic in my early 1965 Vox AC30!
Thanks for the tip @playloud !

 

[playloud]

Rock on @Fernieite! Glad to hear it