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Hi All.
I have a simple question regarding 2 preamps equiped with 12AX7's. Last time I was using them I had a power outage which lasted miliseconds; like if someone had turned it off and on suddently. I checked things next day and they seem to keep working fine, but I was wondering that if the 12AX7 tubes I have in both preamps could have got damaged from that situation, added that one of them was providing phantom power to one of my condensers. I'm worried about that too, but the condenser seems to work fine. Both microphone preamps are low voltage, meaning the power going into them is 9v.
I'm worried because I replaced stock tubes from those preamps and I could say they are good tubes to my taste and really hard to get in my town. One of them is a Tung-Sol 12AX7 reissue and the other one is a Sovtek 12AX7WB.
Thanks in advance guys.
Jet City JCA22H
5x Electro Harmonix 12AX7
2x Electro Harmonix EL84
Far too much gain all over the place. Any ideas ?
Got the OD (Soldano designed) channel on 1-2 and it's already gain city up in here.
You could experiment with replacing the V1 with a 12AT7 (ECC81) or an old long plate 12AX7 (RCA, Brimax, Hammond, etc) for starters. Also could try mixing in a normal JJ (not a higain spec one) in V2 and a GT in V3. You could also experiment with a 12AT7, 7551 or other lower gain tubes in V3 / V4.
In a final nod, an 12AT7 / ECC81 with balanced triodes could be used in V5 (that's the phase inverter slot I think) to lower the overall gain. It has the effect of lowering the overall volume of the preamp but also cleans up the saturation of the overall preamp sound before it goes into the power amp. I have a JJ ECC81 with that config that I use just for such occasions.
Thanks for the tips man i'll definitely take these into serious consideration.
Gotta bust that fizz.
Looking for some advice
I have a Peavey Ultra Plus that I'm looking to get a little darker of a sound, more like a 5150, out of it. A little too bright for me. I have no idea what kind of tubes are in it, but maybe you guys can give me some advice as to which tubes could give me a darker sound?
Thanks!
https://www.eurotubes.com/cart/index.php?page=view_products&category_id=8&sub_category_id=93Looking for some advice
I have a Peavey Ultra Plus that I'm looking to get a little darker of a sound, more like a 5150, out of it. A little too bright for me. I have no idea what kind of tubes are in it, but maybe you guys can give me some advice as to which tubes could give me a darker sound?
Thanks!
Hey does anyone know how jjecc82 are when replacing a 12au7 in a vht2/90/2 power amp?