I’m looking for good quality, reliable valve bases for a phono preamp project, and finding some of the stuff for sale on t’interweb is pretty variable in quality. This is my first valve project - can you guys with experience of building / repairing amps point me towards bases for the following types that will work well: Noval (B9A), Novar (ideally not just Magnoval - B9D?), Octal
Thanks in advance
I should have added that they will be chassis mounted, not PCB. So - where do you buy your valve bases - are shock-proof bases worthwhile for signal valves - are ceramic bases a good idea?
Any advice gratefully received! If no-one can help, I will have to try the Other Place, which I didn’t want to do…
I recently bought 10 of these as I needed some for a project & they seem perfectly fine.
If your implementation is likely to be microphonic (ie high Gm valves in a phono circuit) then you may want to consider something with an element of de-coupling.
Weren’t Allnic making/selling bases mounted in a gel?
EDIT. They were but they only offer them in their own products now.
I made some supports once using Deflex (Sorbathane) pads which worked quite well in a DHT line stage I was playing with.
For the latest phono, I got some nice Teflon ones from eBay:
Teflon tube/valve sockets cmc 9pin (b9a,ecc81-ec88-el84 etc | Sound & Vision, Vintage Sound & Vision, Vintage Parts & Accessories | eBay!
They seem to be very good quality.
That’s the chocolate muffin of valve bases.
Thanks guys! We all like muffins…