6H30 replacement

As an aside, AR seem to have voiced their latest amps to sound pretty decent with readily available examples of the 6H30. I don‘t think they would have made a commitment to this tube if their amps only sounded good when fettled with very costly unobtainium variants.

Pesky, while the specs look close, the 5687 is not pin compatible with tbe 6H30

I‘m pretty sure you can get adapters though. I know there were ones that let you use 6N6Ps in 5687 apps. If not, it‘s pretty easy to make yr own. I never let pinouts stand in the way of subbing - it‘s too limiting: if it works and I‘m happy I just re-wire the socket. Easy.

@pesky_wabbit  the adapter route would not work because the very tight space in the tube sockets. the tubes are 3/4 of the way down the chassis. The last thing I want is to start replacing sockets in the amp...😶

actually you don‘t replace sockets at all. You just re-wire them. Which is entirely reversible, if you employ a good tech who knows how to solder/desolder neatly and quickly.

love those finger slicers - tres chic

and so much more elegant than a cage..