Don’t forget this is from the mid 60’s, when you were supposed to put the switches in the right position, bung it in a cupboard and forget about it for the rest of its life. Making claims like that would probably have been considered very brash and ungentleman-like! I don’t think lyricism and poetry came in until companies began to notice the marketing was as important as the engineering.I was hoping for something a bit more . . . lyrical, poetic.
Something which will explain in words of one syllable and pictures but NO diagrams about order of the little valves etc.
Something that begins
"Congratulations on buying the Radford STA25, the world's greatest amplifier . . ."
That's an interesting question, because that one doesn't have a mark on it as far as I can see saying what it is. It came up when I was speaking to Nick at Emporium/. The EF86 valves are clearly marked.
Is there something I can read about valves, a sort of Idiot's Guide?
That's an interesting question, because that one doesn't have a mark on it as far as I can see saying what it is. It came up when I was speaking to Nick at Emporium/. The EF86 valves are clearly marked.
Is there something I can read about valves, a sort of Idiot's Guide?
Should I turn it off when not in use, or can in be left on for a few hours? I don’t mind turning it off when sleeping but given it only reveals its full majesty after half an hour of warming up, it would be nice not to have to anticipate the whim to listen to it.
Having said that I’ve just put it on and it sounds ****ing great after 5 minutes!
I am really pleased it is working.
... out of interest, did you put the EL34s (the big ones) back in their original places? Maybe they were marked as to location?
If not you might want to check the 2 volt bias settings on each one.
I would not leave it on, switch on 15 to 20 minutes before you want to listen, switch off after. They do get toastie after 5 or 6 hours... and if anything untoward happens you will be there to pull the plug. Enjoy it.
I am really pleased it is working.
... out of interest, did you put the EL34s (the big ones) back in their original places? Maybe they were marked as to location?
If not you might want to check the 2 volt bias settings on each one.
I would not leave it on, switch on 15 to 20 minutes before you want to listen, switch off after. They do get toastie after 5 or 6 hours... and if anything untoward happens you will be there to pull the plug. Enjoy it.
Are you using it with the Spendors then? I used the one I had in with my very similar BCII's and it sounded great! I'd be interested to know your views on STA25 V's KSA50!
They weren't marked unfortunately. At the moment I don't want to take out the EL34s because I had such a lot of trouble putting them in! I intend to get it serviced very soon, which hopefully will sort out these problems. I just want to enjoy it for a few weeks, a month, and then I'll get it serviced.
That one is fine. You will need to check the 'bias' from time to time as the large valves will change from being used. Radford made it really easy as Jez says in #194.
The impedance is set at 8Ω right now, is that the right for my JR149s?