I am thinking of using my ST70 in a situation where there will be a mono input and each output might have a different ohm load. Say an 8 ohm output on one channel and a 16 on the other. Would that hurt the amp?
4 posters
Unequal load St 70 ?
GP49- Posts : 792
Join date : 2009-04-30
Location : East of the sun and west of the moon
- Post n°2
Re: Unequal load St 70 ?
No.
Sal- Posts : 221
Join date : 2009-02-05
Location : Central New Jersey Dynaco-ST70.com
- Post n°3
Re: Unequal load St 70 ?
As long as the 8 om speaker is connected to the 8 ohm tap and the 16 ohm speaker is connected to the 16 ohm tap there will be no problem.
Sal
Sal
Greg_M- Posts : 40
Join date : 2010-09-18
Location : Poulsbo, WA
- Post n°4
Re: Unequal load St 70 ?
Thank You
j4570- Posts : 150
Join date : 2010-08-30
- Post n°5
Re: Unequal load St 70 ?
Curious,
What's the what if? That sounds really unique. Guitar Amp?
What's the what if? That sounds really unique. Guitar Amp?
Greg_M- Posts : 40
Join date : 2010-09-18
Location : Poulsbo, WA
- Post n°6
Re: Unequal load St 70 ?
I'm building a leslie speaker. It typically has 16 ohm drivers for bass and treble. But the original drivers are pretty expensive and will not handle a lot of power. Same with the bass speaker. So if/when I wish to replace them, it will be easier to use 8 ohm speakers. The original tube amps used for these (although being sought now by the guitar crowd) are not HiFi. And....I have this spare ST70 sitting around.....
j4570- Posts : 150
Join date : 2010-08-30
- Post n°7
Re: Unequal load St 70 ?
Are they really that rare? A roomate of mine had one for an organ. I actually repaired it about 15 years ago. Just needed a new diode in the bridge rectifier.
So by different load, you mean one channel on low, one on high frequency. It put out good volume, for the not so much power. Great organ sound.
Oh, he still has it, last I heard. Don't think he'll be parting with it. That's probably more of the problem, people know what they have.
Jason
So by different load, you mean one channel on low, one on high frequency. It put out good volume, for the not so much power. Great organ sound.
Oh, he still has it, last I heard. Don't think he'll be parting with it. That's probably more of the problem, people know what they have.
Jason
Greg_M- Posts : 40
Join date : 2010-09-18
Location : Poulsbo, WA
- Post n°8
Re: Unequal load St 70 ?
Not rare but expensive
Yes one channel low and one high.
Yes one channel low and one high.
j4570- Posts : 150
Join date : 2010-08-30
- Post n°9
Re: Unequal load St 70 ?
What's the cost to build (discounting time of course)? Just curious. Or is there a kit out there?
Greg_M- Posts : 40
Join date : 2010-09-18
Location : Poulsbo, WA
- Post n°10
Re: Unequal load St 70 ?
Mostly it involves finding the various leslie parts and building a box to put them in. Where you get the parts and how much you pay versus how much you scrounge is a big variable. I hope to come in at the $400-500 range.
They sell used for 2-3 times that much. But if you are in the right place at the right time you can get them for free like a lot of things
They still sell them new for a lot of money. No kits that I know of.
They sell used for 2-3 times that much. But if you are in the right place at the right time you can get them for free like a lot of things
They still sell them new for a lot of money. No kits that I know of.