la bam Posted June 18, 2019 Share Posted June 18, 2019 Hi all, Just got my first proper tube valve amp. Daft question, I get the switching to stand by before switching on properly etc, but..... The standby and power switch have a 0 and 1. For power obviously 0 is off and 1 is on. So, at 0 is that 'standby' off, and therefore the amp is running, and when at 1 amp is in standby? To help, what should the switches be set at when switching on for the first time? Power 1 and Standby 1? Then to get volume, power 1 and standby 0? Any help really appreciated, before I turn it on for the first time! Quote Link to comment Share on other sites More sharing options...
la bam Posted June 18, 2019 Author Share Posted June 18, 2019 It's a laney nexus tube if that helps. Quote Link to comment Share on other sites More sharing options...
spyder Posted June 18, 2019 Share Posted June 18, 2019 With both switched to 0. Switch power to 1. Leave for 5 minutes. Switch the standby to 1 to turn the amp on. Its a wonderful amp and always regretting selling mine. Quote Link to comment Share on other sites More sharing options...
la bam Posted June 18, 2019 Author Share Posted June 18, 2019 Perfect thanks. Quote Link to comment Share on other sites More sharing options...
Bill Fitzmaurice Posted June 18, 2019 Share Posted June 18, 2019 There's no need to wait for the tube heaters to warm up before switching standby to on. The standby is there to allow you to turn off the main power rails while leaving the tube heaters on, so there's no wait to warm them up again after you've had your pint and are ready to play the next set. 1 Quote Link to comment Share on other sites More sharing options...
la bam Posted June 18, 2019 Author Share Posted June 18, 2019 The manual says to wait 2 minutes Bill. Quote Link to comment Share on other sites More sharing options...
Bill Fitzmaurice Posted June 18, 2019 Share Posted June 18, 2019 There's no technical reason why. If you turn on the B+ power rails before the tubes heat up no harm will come of it, you just won't get any sound out of it until the tube heaters get up to temperature. It never causes a problem for amps that don't have separate switches for the heaters and the B+. Quote Link to comment Share on other sites More sharing options...
la bam Posted June 18, 2019 Author Share Posted June 18, 2019 Ok, thanks. Quote Link to comment Share on other sites More sharing options...
xgsjx Posted June 20, 2019 Share Posted June 20, 2019 My valve amp only has an on/off switch. No "Standby". Quote Link to comment Share on other sites More sharing options...
Reggaebass Posted June 20, 2019 Share Posted June 20, 2019 My Ashdown LB30 has an on/off power switch but also has a mute button , which I use when I’m switching basses or leads etc , and I always let it warm up for a few minutes 🙂 Quote Link to comment Share on other sites More sharing options...
la bam Posted June 20, 2019 Author Share Posted June 20, 2019 All sorted now. As spider said - start with both at 0, switch on power to 1, leave for a bit, switch on standby to 1. This now means it's in run mode (ironically, not standby!) but all good. So, to summise, on the standby switch, 0 is standby (ie on but no sound) and 1 is not in standby / run mode (sound). 1 Quote Link to comment Share on other sites More sharing options...
Beer of the Bass Posted June 21, 2019 Share Posted June 21, 2019 Yep, the labelling on Standby switches can be counter-intuitive - usually 0 is "standby" and 1 is "run". On my DIY amps, whenever I've used a standby switch I've labelled the two positions as Standby/Play rather than 0/1. Quote Link to comment Share on other sites More sharing options...
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