The System

[Opti-cal]

Changed over them over - One is not lit as well as the others so do i need to source another EL 84 - The channel is working -

Some tubes do sometimes display less 'illumination' than other identical tubes. Were the tubes matched when you bought them? As the amp is auto-bias it really shouldn't be much of an issue. If it sounds okay I would think all is well.

I mean if it's only barely lit compared to others being bright I'd think again but if it just seems a bit 'dull' in comparison it's unlikely an actual issue.

You could also swap the non illuminated tube for one that does illuminate more in another socket, then you can determine if it is the tube or the amp. Again if it is auto bias and sounds okay, I wouldn't worry too much. Also if they are NOS tubes and haven't been used before they will change a bit (as I'm sure you know). I'd leave it on for a couple of hours and have a listen, any loud crackling/imbalance and I'd switch off and have a rethink.

Been a while since I had one but I loved my old EL84 amplifier. Very sweet top end and just a fun sound.

[dantheman91]

Some tubes do sometimes display less 'illumination' than other identical tubes. Were the tubes matched when you bought them? As the amp is auto-bias it really shouldn't be much of an issue. If it sounds okay I would think all is well.

I mean if it's only barely lit compared to others being bright I'd think again but if it just seems a bit 'dull' in comparison it's unlikely an actual issue.

You could also swap the non illuminated tube for one that does illuminate more in another socket, then you can determine if it is the tube or the amp. Again if it is auto bias and sounds okay, I wouldn't worry too much. Also if they are NOS tubes and haven't been used before they will change a bit (as I'm sure you know). I'd leave it on for a couple of hours and have a listen, any loud crackling/imbalance and I'd switch off and have a rethink.

Been a while since I had one but I loved my old EL84 amplifier. Very sweet top end and just a fun sound.

++

[Opti-cal]

Hi Chris

All was well sounded fine no loss of balance think they were a matched set of 4 but bought them over a year ago as NOS sale - a picture to clarify - If you can see had to re size it Lol

Hi Dan, can't see too well in that picture to be honest but if it sounds okay, it probably is. It's possible there is a slight spec difference within the tube and your amp is compensating by slightly under powering it I guess. Like I say keep an eye on it and if it gets dimmer or things start to sound off take it out. Like I say could try swapping them round and see if its the socket (amp) or the tube.

[dantheman91]

Yep that EL 84 is not right Off to the Tech..

[dantheman91]

The LA Audio A30 is now running Mullard EL84's

The Little Wharfedale Diamond MK1 are sounding astonishing this morning -

[Opti-cal]

The LA Audio A30 is now running Mullard EL84's

The Little Wharfedale Diamond MK1 are sounding astonishing this morning -

Christ that was quick! Is your tech locked away in your basement?!?! Now that would be nice . . . . only allowed out for repairs!

Glad its back up and running, do you know what the issue was?

Are they older NOS Mullards or the reissues?

[dantheman91]

Christ that was quick! Is your tech locked away in your basement?!?! Now that would be nice . . . . only allowed out for repairs!

Glad its back up and running, do you know what the issue was?

Are they older NOS Mullards or the reissues?

One of the Mullard's was faulty so he popped in a replacement fully tested EL 84 that was it £20 later - I have no ideal if originals or not but they sound superb i think they all are NOS but not sure - Much improved as to what was originally tubes were used much sweeter now - again a legendary British Valve £85 for a set of 4 total

Happy Listening

[dantheman91]

Morning Lash Up

Quad 34 Pre
NAD 3020 as Power
Ariston RD 80 / Linn LVV Tonearm and Audio Technica Signet TK5E Cartridge
Ruark Talisman MK1 Speakers

Great Sounding lash up -

Spinning - Steve Winwood - Back In The High Life -

[walpurgis]

Hmm. Would it sound better without the Quad 34 and just using the NAD as an integrated?

Can't argue with the rest.

[dantheman91]

Hmm. Would it sound better without the Quad 34 and just using the NAD as an integrated?

Can't argue with the rest.

Possibly but fun all the less -